Ensure focus_in and focus_out fire on window activation

Also:
- Rename cx.on_blur to cx.on_focus_lost
- Fix a bug where notify calls in focus handlers were ignored
- Fix a bug where vim would get stuck in the wrong mode when switching
  windows
1bf33b4b61Conrad Irwin committed on 1/10/2024, 3:55:00 AMparent0daa2bf
3 files changedLine totals unavailable