docs(icon): update stories for csf3 for the Icon component

[ncruz-av]

Before submitting a pull request, please make sure the following is done:

1. Fork the repository and create your branch from master.
2. Run yarn in the repository root.
3. If you've fixed a bug or added code that should be tested, add tests!
4. Ensure the test suite passes (yarn test). Tip: yarn test --watch TestName is helpful in development.
5. Make sure your code passed the conventional commits check. Read more about conventional commits

[codecov[bot]]

Codecov Report

Merging #1327 (e9767d2) into master (b4c5bfa) will decrease coverage by 0.71%. Report is 4 commits behind head on master. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1327      +/-   ##
==========================================
- Coverage   93.69%   92.99%   -0.71%     
==========================================
  Files          30       99      +69     
  Lines         873     3142    +2269     
  Branches      269      950     +681     
==========================================
+ Hits          818     2922    +2104     
- Misses         55      220     +165     

see 87 files with indirect coverage changes