✨ Add uninstall support for component libraries in CLI and UI

[rabea-al]

Description

This PR introduces the ability to uninstall component libraries:

• UI: Added a new option to the context menu allowing users to uninstall a library directly from the sidebar.

• CLI: Added a new uninstall command to remove a library via terminal.

Pull Request Type

• Xircuits Core (Jupyterlab Related changes)
• Xircuits Canvas (Custom RD Related changes)
• Xircuits Component Library
• Xircuits Project Template
• Testing Automation
• Documentation
• Others (Please Specify)

Type of Change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Tests

1. Test A - Uninstall via UI (Context Menu)

1. Go to the Component Library sidebar.

2. Right-click on an installed library (e.g. agent, flask).

3. Click on Uninstall agent from the context menu.

4. Confirm the uninstall prompt.

5. Check that:

   • The library disappears immediately from the list.
   • A success notification appears.
   • Files are deleted from xai_components.

2. Test B - Uninstall via CLI

1. Open terminal.

2. Run:

   xircuits uninstall agent

3. Confirm that:

   • The CLI outputs Library 'agent' uninstalled.
   • The library folder is removed from xai_components.
   • No errors appear if the library doesn't exist — a warning is printed instead.

Tested on? Specify Version.

• Windows
• Linux Fedora
• Mac
• Others (State here -> xxx )

[github-actions]

👈 Launch a binder notebook on branch rabea-al/xircuits/add-uninstall-feat

[MFA-X-AI]

Looks solid, great work!
One thing I'm noticing here is whether we should allow the baked-in components to be uninstalled or not. Technically yes it should, but if so users wouldn't have a way to reinstall it. Let me get back to you on this.
While waiting, since it's a new CLI feature, could you also add that to our CLI test suite? Thanks.

[MFA-X-AI]

This works well too. I can confirm the uninstall for both cli and frontend. The core libs aren't allowed to be uninstalled either. Great work!