Implement Deletion Confirmation and Loading Spinner (#24, #25)

[ZeeshanMukhtar1]

PR Description:

This pull request addresses two user experience improvements for the delete repository functionality:

1. Confirmation Modal for Deletion:
   • Introduces a confirmation modal that prompts the user to verify their intention before permanently deleting a repository. This adds a crucial safety measure to prevent accidental deletions. (Issue #24)
2. Loading Spinner for Deletion:
   • Implements a loading spinner that displays while the deletion process is in progress. This provides visual feedback to the user, indicating that the action is being processed. (Issue #25)

Testing Instructions:

1. Navigate to the "Delete Repository" page.
2. Click the "Delete" button. ( red btn in danger zone
3. Verify that a confirmation modal appears, prompting you to confirm deletion.
4. Click "Continue" to proceed with deletion.
5. Observe the loading spinner while the deletion is in progress.
6. Once deletion is complete, verify that appropriate feedback is displayed (e.g., success message from sooner).

Fixes:

• Fixes Issue #24: Adds a confirmation modal for repository deletion.
• Fixes Issue #25: Adds a loading spinner for deletion progress.

Benefits:

• Enhanced user experience with a confirmation step before deletion.
• Improved user feedback through a visual indicator of deletion progress.

@mentions:

• Feel free to comment on this PR if you have any questions or require further changes.
• @Balastrong

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[Balastrong]

Hey, thanks for the PR!

I'm sorry but there's already another one fixing the same issue (see #30) so I'm gonna close this one.

Feel free to review the other PR and add feedback if you have :)