docs(list-group): update stories for csf3 for the ListGroup 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 #1332 (06dc839) into master (434790f) will increase coverage by 8.27%. Report is 1 commits behind head on master. The diff coverage is n/a.

@@             Coverage Diff             @@
##           master     #1332      +/-   ##
===========================================
+ Coverage   91.72%   100.00%   +8.27%     
===========================================
  Files          59         2      -57     
  Lines        1824        11    -1813     
  Branches      523         0     -523     
===========================================
- Hits         1673        11    -1662     
+ Misses        151         0     -151     

see 61 files with indirect coverage changes