[BD-46] feat: finished FontAwesome deprecation

[PKulkoRaccoonGang]

Description

Issue: #2235

Merge Checklist

• If your update includes visual changes, have they been reviewed by a designer? Send them a link to the Netlify deploy preview, if applicable.
• Does your change adhere to the documented style conventions?
• Do any prop types have missing descriptions in the Props API tables in the documentation site (check deploy preview)?
• Were your changes tested using all available themes (see theme switcher in the header of the deploy preview, under the "Settings" icon)?
• Were your changes tested in the example app?
• Is there adequate test coverage for your changes?
• Consider whether this change needs to reviewed/QA'ed for accessibility (a11y). If so, please add wittjeff and adamstankiewicz as reviewers on this PR.

Post-merge Checklist

• Verify your changes were released to NPM at the expected version.
• If you'd like, share your contribution in #show-and-tell.
• 🎉 🙌 Celebrate! Thanks for your contribution.

[openedx-webhooks]

Thanks for the pull request, @PKulkoRaccoonGang!

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[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.04 🎉

Comparison is base (c13dfb1) 90.98% compared to head (a227b5a) 91.02%.

Additional details and impacted files

@@            Coverage Diff             @@
##            alpha    #2327      +/-   ##
==========================================
+ Coverage   90.98%   91.02%   +0.04%     
==========================================
  Files         214      214              
  Lines        3537     3534       -3     
  Branches      862      860       -2     
==========================================
- Hits         3218     3217       -1     
+ Misses        311      309       -2     
  Partials        8        8              

Impacted Files	Coverage Δ
src/IconButton/index.jsx	93.75% <100.00%> (+9.53%)	⬆️

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[openedx-webhooks]

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[edx-semantic-release]

🎉 This PR is included in version 21.0.0-alpha.28 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

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[edx-semantic-release]

🎉 This PR is included in version 22.0.0-alpha.1 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

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[openedx-semantic-release-bot]

🎉 This PR is included in version 23.0.0-alpha.1 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

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