feat: show confirmation dialog before discarding library changes [FC-0062]

[navinkarkera]

Description

Issue: #1405

vokoscreenNG-2024-10-23_15-31-36.mp4

Testing instructions

• add a component in any library
• Click on Discard changes button in sidebar and verify the confirmation modal.

[openedx-webhooks]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.15%. Comparing base (11470f2) to head (0f870fd).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1428   +/-   ##
=======================================
  Coverage   93.15%   93.15%           
=======================================
  Files        1051     1051           
  Lines       20328    20338   +10     
  Branches     4335     4334    -1     
=======================================
+ Hits        18936    18946   +10     
+ Misses       1332     1329    -3     
- Partials       60       63    +3     

☔ View full report in Codecov by Sentry.
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[ChrisChV]

Looks good 👍

• I tested this: I followed the testing instructions
• I read through the code and considered the security, stability and performance implications of the changes.
• I tested that the UI can be used with a keyboard only (tab order, keyboard controls).
• Includes tests for bugfixes and/or features added.
• Includes documentation
• Includes fixtures that create objects required for manual testing.