* Add delete functionality for Kubernetes contexts
This adds the ability to delete Kubernetes contexts using the 'd' key in the context view. The implementation includes:
- New delete command bound to 'd' key
- Confirmation dialog before deletion
- Error handling and UI refresh after deletion
* Refactor context delete dialog to use standard dialog component
- Replace custom delete confirmation with dialog.ShowConfirm
- Add read-only mode checks for rename and delete commands
- Change delete keybinding from 'd' to 'Ctrl+d'
- Remove unused deletePage constant and related functions
- Simplify delete callback logic
* Refactor context view key bindings to separate dangerous operations
* Fix linting error
40cf6a151f