Add long_description field into Ansible Playbook catalog item form

[rvsia]

https://bugzilla.redhat.com/show_bug.cgi?id=1482905

Description of problem:
Unable to add Long Description for Playbook based Catalog Items

Steps to Reproduce:

1. look at the service catalog, there's a line that says "long description"
2. go to the catalog item and try to edit it
3. there is a now way how to edit it

Before/After

Before

After

@miq-bot add_label gaprindashvili/yes, bug

[rvsia]

@h-kataria Please, review :)

[rvsia]

@miq-bot remove_label euwe/yes
@miq-bot add_label fine/yes

[skateman]

@rvsia I think you got too many screenshots that look the same 😉. I'm not sure if this is backportable to fine because of Angular. Also you will need to work a little on the commit messages 😉

@miq-bot add_reviewer @epwinchell

[skateman]

Maybe I'm wrong, but shouldn't be this consistent with the long descripiton for other types? Maybe it's not doable because of Angular, or two tabs would look ugly, so I'm not really sure.

[skateman]

Also long description is missing when you just display the item in catalog items:

[rvsia]

@skateman
The main reason for this solution was that CodeMirror doesn't work well in tabs in Angular form - it renders badly after switching and user has to click on that to show it properly - or there has to be a timeout function which inits the editor and I'm not sure if using timeout functions is a good idea.

And two tabs looks ugly and I don't think it's good design in the old form. You have to click on "Display in Catalog" to show a tab and honestly, I couldn't find "long description" field when I started working on this bug. :D This solution makes more sense - you switch the option and you immediately see what you can change.

I think it would be better to make a PR in the future and redesign both forms (old one and Angular) to look and work the same. There are more differences right now. This is just a BZ fix.

In regarding of showing it in Catalog Items, long description is also missing in other items. And to maintain consistency a "Details" tab should be added to it, because we have "Basic Info" and "Details" tabs in Edit and in Catalog Item there is only a title "Basic Information". It deserves more attention by someone who designs these pages and stuff to make it properly and consinstence, but I don't know how it works here yet. :D

[mzazrivec]

Why do you mention theme explicitly here?

[rvsia]

It's just a leftover from testing, I'll remove it!

[epwinchell]

Tested. Looks fine.

[miq-bot]

Checked commits rvsia/manageiq-ui-classic@ad7c96c~...460e6d8 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
0 files checked, 0 offenses detected
Everything looks fine. ⭐