feat(root): implement dynamic todo list refresh and UI enhancements

This change adds a mechanism to refresh the todo list dynamically when the underlying service updates, improving UI responsiveness and user experience. It also updates documentation and removes deprecated files.

- New Features:
  - Added `_refresh_todos` method to rebuild the todo list when `get_todo_service().todos` changes.
  - Introduced `TodoListCapture` class for mouse capture handling of the todo list window.
- Enhancements:
  - Updated README with corrected image paths, installation tips, and manual installation commands.
  - Introduced `start.py` to launch the application or lock mode.
  - Removed deprecated `config.json` and `debug_memory.py`.
- Bug Fixes:
  - Fixed lock screen screenshot path in README.

src/utils/constants.py

@@ -0,0 +1,31 @@
+DEFAULT = {
+    "wallpapers_dir": "~/Pictures/Wallpapers/",
+    "dock_position": "Bottom",
+    "terminal_command": "kitty -e",
+    "dock_enabled": True,
+    "dock_auto_hide": True,
+    "dock_always_occluded": False,
+    "dock_icon_size": 52,
+    "window_switcher_items_per_row": 10,
+    "hide_special_workspace": True,
+    "dock_hide_special_workspace_apps": True,
+    "notification_timeout": "5s",
+    "notification_ignored_apps": ["Hyprshot"],
+    "notification_limited_apps_history": ["Spotify"],
+    "imac_button": True,
+    "systray": True,
+    "control_center": True,
+    "search": True,
+    "global_menu": True,
+    "network": True,
+    "battery": True,
+    "notification_center": True,
+    "workspace_indicator": True,
+    "bluetooth": True,
+    "date_time": True,
+    "keyboard_layouts": ["us", "np"],
+    "dock": True,
+    "window_switcher": True,
+    "osd": True,
+    "systray_ignore": ["blueman", "network"],
+}