Switches the repo to use eslint instead of the deprecated tslint. Also adjusts the default config to match our previous setup.

i forget we're LLC :)

Updates the Angular packages to v12 RC and sync up the version of MDC.

- needed for `data:image/png;base64` images used in some examples

When generating an example in Stackblitz, we have to create a `form` element and submit it to a specific URL. The `form` has to be created eagerly, because some browsers will block us from submitting it if it is created asynchronously.

As a result of this setup we fire off a lot of HTTP requests when an example is rendered which slows the page down a lot. These changes make the following improvements which shave off more than a second of scripting time when transitioning from the "Overview" to "Examples". I've used the datepicker examples as a benchmark.

1. Runs the HTTP requests outside of the Angular zone so that we don't trigger change detections once each request is resolved.
2. Caches the file content so that the user doesn't have to load the same file multiple times.

I've also fixed that the copyright still said "2020".

- fixes ng serve warnings about server via workspace migration

- fixes a bug in sidenav where user has to scroll to bottom
  of the page to reach bottom of navigation

Fixes angular#857

Co-authored-by: Michael Prentice <[email protected]>

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

Signed-off-by: dependabot[bot] <[email protected]>

Bumps [underscore](https://github.com/jashkenas/underscore) from 1.12.0 to 1.13.1.
- [Release notes](https://github.com/jashkenas/underscore/releases)
- [Commits](jashkenas/underscore@1.12.0...1.13.1)

Signed-off-by: dependabot[bot] <[email protected]>

Bumps [url-parse](https://github.com/unshiftio/url-parse) from 1.4.7 to 1.5.1.
- [Release notes](https://github.com/unshiftio/url-parse/releases)
- [Commits](unshiftio/url-parse@1.4.7...1.5.1)

Signed-off-by: dependabot[bot] <[email protected]>

- add links for additional help/support resources in homePage
  - add twitter, angular event and angular blog

Fixes angular#133

Co-authored-by: Michael Prentice <[email protected]>

…i18n (angular#991)

Exposes the docs for `cdk/coercion` and `cdk/collections`.

Fixes angular#19530.
Fixes angular#18818.

Replaces the `async` method marker with a generic marker that can also be used for static methods.

Related to angular#22786.

Due to legal requirements we have to have a cookie disclaimer popup. It is always shown until the user agrees to it. After the user has agreed, the popup won't be shown on subsequent sessions.

Fixes angular#22746.

Currently we fetch a doc every time we need to display it which means that user navigating between two pages will have to request the same information multiple times.

These changes add a caching layer since the information isn't going to change.

Follow-up to angular#22829. Exposes the CDK accordion docs in the navigation.

Fixes that the guide tiles can overlap the footer on smaller screens.

Fixes https://github.com/angular/components/issues/22860.

Co-authored-by: Michael Prentice <[email protected]>

- fix cookies dialog button contrast in dark mode

Fixes angular#1008

Currently the carousels on the front page don't align with any other elements on the page which looks odd. This seems to be due to a limitation where the item size has to be passed in to the carousel.

These changes reimplement the carousel, making it more flexible and allowing it to handle any size of items and any spacing. The new carousel is used on the frontpage to lay out the items in a way that aligns with the rest of the content.

…1004)

- fix hover and focus indicators on header nav items to have sufficient contrast

Fixes angular#759

Fix unselected theme picker when localStorage is empty.

Fixes angular#204

…#1002)

Companion PR to angular#22837. Removes the default form field appearance so that we get a consistent result between the docs site and Stackblitz.

* Aligns the design between the tables inside markdown and the tables in the API docs. I chose to go with the design from the API docs, because the separation between cells is much better.
* Fixes the poor color contrast on the table border by using the correct theming variables.
* Removes the table box shadow and fixes up some spacings to make the tables look better.

- update `@angular-eslint` packages
- fix dns-packet and a number of other vulnerabilities
- from: 104 vulnerabilities found - Severity: 1 Low | 90 Moderate | 13 High
- to: 34 vulnerabilities found - Severity: 1 Low | 24 Moderate | 9 High

Closes angular#1000

Fixes Angular Material footer logo for IE11

Fixes angular#1027

…les (angular#1009)

- remove tslint and codelyzer from examples
- update jasmine dependencies
- remove unused material-module.ts from test assets
- add jasmine-core to package.json in stack-blitz-tests/
- disable `noImplicitAny` in stack-blitz-tests' tsconfig.spec.json since
  `jasmine-core/lib/jasmine-core/jasmine.js` imported in `test/jasemine-setup.ts`
   is not compatible

Fixes angular#997

Fixes that the table of contents was triggering change detections while scrolling.

* Bumps to Angular 12.2.0 and TS 4.3.
* Fixes a couple of Sass division operator warnings.

* Fixes that selecting the header text also selects the word `link` from the icon.
* Tries to center the icon a little bit better.

Stackblitz has a race condition that an cause issues when running ngcc against our packages, resulting in errors.

These changes temporarily disable Ivy until we can start using the linker.

Currently we're running the Components packages at v13-next, but the other Angular packages are at v12. These changes align the major versions.

Drops IE from the `.browserslistrc` and an IE-specific `meta` tag.

De-duplicates some logic and adds programmatic sorting of the menu items so that we don't have to do it manually. Currently the "Component harnesses" menu item is out of order.

Opts the docs site into the new test module teardown behavior.

…kblitz demo (angular#1060)

Bumps [tar](https://github.com/npm/node-tar) from 4.4.13 to 4.4.19.
- [Release notes](https://github.com/npm/node-tar/releases)
- [Changelog](https://github.com/npm/node-tar/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-tar@v4.4.13...v4.4.19)

---
updated-dependencies:
- dependency-name: tar
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

* remove duplicated meta tag for `theme-color`

- update StackBlitz for v13-next
- update firebase-tools
- fix dependabot issues
- update to `[email protected]` to support NodeJS 16.x

Closes angular#1038. Closes angular#1040. Closes angular#1042.

Bumps [glob-parent](https://github.com/gulpjs/glob-parent) from 5.1.1 to 5.1.2.
- [Release notes](https://github.com/gulpjs/glob-parent/releases)
- [Changelog](https://github.com/gulpjs/glob-parent/blob/main/CHANGELOG.md)
- [Commits](gulpjs/glob-parent@v5.1.1...v5.1.2)

---
updated-dependencies:
- dependency-name: glob-parent
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Reworks the logic that stamps out the required version in Stackblitz to be more lenient so that we don't get weird errors between releases.

Also removes the shared `materialVersion` constant since it's redundant.

Cleans up the usages of deprecated tilde imports.

The class was already there but not used.

Resolves the error that was breaking the lint CI check.

…13 compatibility

Updates to the Stackblitz example writer:

* Simplifies opening mechanism by relying on the small/tree-shakable
  `@stackblitz/sdk` package instead of manually constructing the form.

* Updates the template files to reflect the files generated by a new
  CLI project generated with CLI v13.rc.

* Updates the StackBlitz base template from Angular to `node` which is
  bringing in the new WebContainer feature from StackBlitz. We need to
  use this as v13 packages are currently not supported by StackBlitz due
  to the APF v13 changes. Also WebContainer is recommended to be used in
  our case due to the complexities involed in running/replicating the
  CLI, while WebContainers could simply run them. -> with the benfit of
  users being able to experience Angular directly in the browser, as
  they would locally.

  * One downside is that the Stackblitz examples will not work in Safari and
    Firefox yet. Stackblitz prints a good message explaining why. For
    testing reproductions, the team needs to just download the zipped
    project and run it locally. This is another benefit of using the CLI
    directly in a WebContainer. It's a small trade-off for being able to
    actually rely on the CLI fully (mitigating potential cache issues
    like we have faced before).

* Removes the second boilerplate/template for running test harness
  examples. These will run as part of the same CLI boilerplate (allowing
  us to reduce the burden of maintaining a second boilerplate).

  * This also required some logic for selectively populating a
    `${startCommand}` placeholder so that either `yarn test` or `yarn
    start` is executed in the StackBlitz VM.

…s for v13 compatibility

Update version in package.json file

…s for v13 compatibility

Address feedback

…s for v13 compatibility

Address Jeremys's feedback

…#1094)

…gular#1096)

* refactor: update stackblitz boilerplate to setup test environment

We removed the test environment calls from the harness example spec
files so that the standard CLI `test.ts` file can initialize the
test browser environment. This commit updates the SHA of the docs
content and re-adds the `test.ts` init environment logic.

angular@88b718e

* fixup! refactor: update stackblitz boilerplate to setup test environment

feedback

Updates to the latest RC versions for v13. This also reverts a change
from angular#1004 which made the hover color for the top nav buttons use the
accent color, which is **wildly** off-spec.

PR angular#645 erroneously changed this to a relative url. We want this to always use the latest material.angular.io so that we don't have to update old branches for new major versions.

Makes it so that we disable all animations if the user prefers reduced motion.

A `favicon.ico` is stored in `assets/stack-blitz/src` but not sent to stackBlitz. So despite `favicon.ico` in assets, it is currently not used anywhere.

Another solution would be to delete `favicon.ico`.