feat(collapse): add accessibility elements of the collapse

[ExFlo]

Before submitting the PR, please make sure you do the following:

• Read the Contributing Guidelines
• Reference your PR to an issue that was discussed ahead of time
• The PR should contain a clear description of the problem it solves
• Ideally, include a test that fails without this PR but passes with it.

Tests and linting

• Run the unit tests with npm run test
• Run the linting with npm run lint
• Run the e2e tests with npm run e2e

Thank you for contributing to AgnosUI!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.10%. Comparing base (e311275) to head (484a87e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #973   +/-   ##
=======================================
  Coverage   92.10%   92.10%           
=======================================
  Files          94       94           
  Lines        2532     2533    +1     
  Branches      421      421           
=======================================
+ Hits         2332     2333    +1     
  Misses        130      130           
  Partials       70       70           

Flag	Coverage Δ
e2e	83.17% <100.00%> (+<0.01%)	⬆️
unit	85.73% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.