refactor: tab closing logic and add close tab hotkey

[Pragadesh-45]

fixes: #3264

Description

This PR implements the logic for a Ctrl+W or Cmd+W hotkey to close a request tab from the RequestTab component. This enhancement includes a modal prompt to save changes before closing, improving the overall user experience. I removed the Ctrl+W hotkey functionality from the hotkeys provider and refactored the handleCloseClick method to reuse existing code.

Contribution Checklist:

• The pull request only addresses one issue or adds one feature.
• The pull request does not introduce any breaking changes
• I have added screenshots or gifs to help explain the change if applicable.
• I have read the contribution guidelines.
• Create an issue and link to the pull request.

Before:

20241017-0756-03.7511875.mp4

After:

Uploading 20241017-0757-23.3456865.mp4…

[rsilvr]

@Pragadesh-45 I think I went a little bit further adding the prompt for all closing actions in the tab context menu in this PR. I could incorporate the hot key functionality there if you think it is worth it

[Pragadesh-45]

@rsilvr Yes, yes! Eventually, we can add the hotkeys for closing a tab and closing all tabs. Let me take a look at your PR