fix: properly pass the block to the icon constructor in blockfactory blocks

[BeksOmega]

The basics

• I branched from develop
• My pull request is against develop
• My code follows the style guide
• I ran npm run format and npm run lint

The details

Resolves

Fixes N/A

Proposed Changes

Properly passes the block to the mutator icon constructor in the block factory demos.

Behavior Before Change

The block factory field blocks would cause console errors.

Behavior After Change

No Errors

Reason for Changes

The block factory should be usable!

Test Coverage

N/A

Documentation

Going to update the description of the mutator refactor PR to include info about needing to pass the block to the constructor. Previously passing the block was optional (even though it was not marked as optional).

Additional Information

N/A

[conventional-commit-lint-gcf]

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-- conventional-commit-lint bot
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