Modify Tabs and create demo panel

[clarasb]

This PR:

• made changes to the return value of the Tabs component.
• adds a demo panel that showcases the Tabs component

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.74%. Comparing base (63037e1) to head (d6a515a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #129      +/-   ##
==========================================
+ Coverage   92.71%   92.74%   +0.02%     
==========================================
  Files          86       86              
  Lines        1496     1502       +6     
  Branches      225      230       +5     
==========================================
+ Hits         1387     1393       +6     
  Misses         91       91              
  Partials       18       18              

Flag	Coverage Δ
backend	100.00% <ø> (ø)
frontend	84.98% <100.00%> (+0.12%)	⬆️

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.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.