- Renamed alt_provider.py file under words completer
- Improve word completion matching logic with character validation
- Change container orientations (header→vertical, left/right→horizontal)
- Add separators to all container edges
- Refactor webkit UI loading into separate load_url/load_context_base_path methods
- Add comprehensive webkit browser-like settings
- Moved plugins to apropriate sub folders
- Refactor command system with new add_command method and rename GetCommandSystemEvent to GetNewCommandSystemEvent
- Add RegisterCommandEvent for dynamic command registration
- Change footer container orientation to VERTICAL
- Add search-highlight tag to source buffer
- Add file change detection (deleted, externally modified) in source_file
- Add JSON prettify option to source view popup menu
- Enable hexpand on VTE widget
- Update plugins_controller_mixin to use widget_registry
