Added

Enhanced tab selection functionality
- Added Shift+W shortcut to close all selected tabs
Options page - Tree-style tabs
- Added new option [Close entire tree when closing parent tab]
When display mode is tree-style tabs, click close button to close single tab, right-click to close tab tree
Added settings dialog to toggle box selection, allowing users to disable box selection feature

Changed

Optimized tab grouping functionality
- Added option to ignore www prefix
- Improved domain grouping format options
- Enhanced group preview display
Optimized bottom navigation - More - Group by website menu
- Supports more options: Full domain, Main domain, Domain without suffix, Custom combinations
- Supports quick launch of [Auto Activate Tab Grouping]
- Supports preview of different grouping options when grouping current open tabs by website
Optimized menu [Add tab to group]
- Added [Group by website] (premium feature)
Added dotted border to discarded tab icons (consistent with browser behavior)
Refactored page sidebar related code and introduced sidebar trigger area and position settings
Updated localization files
- Improved translation consistency across all supported languages

Fixed visual flickering issue caused by conflict between tab switching and selection mode
Added compatibility testing and optimization for Opera browser