Version 0.1.1

New Features
- Added global keyboard shortcut (Ctrl+Shift+Period) to quickly open the extension popup from any tab.
- Added fade-in/fade-out animations for smoother split view transitions.
- Added Escape key support to instantly close an active split view overlay.
- Added overlap detection in the layout editor with visual warnings to prevent broken grids.
- Added unsaved changes warning when closing the layout editor tab.
- Added Ctrl+S shortcut to save layouts and Enter key to apply splits directly from the popup.

Improvements
- Refined auto-suggestions to properly respect Firefox Tab Groups, preventing mixed grouped/ungrouped tab suggestions.
- Improved accessibility with ARIA roles for layout selection and live status regions.
- Enhanced error handling for internal browser pages and invalid URLs.
- Optimised window tiling logic to prevent race conditions and misalignment on multi-monitor setups.

Fixes
- Fixed CSS leakage where overlay styles were incorrectly injected into embedded iframes on third-party sites.
- Fixed popup window positioning calculations for high-DPI and non-standard aspect ratio displays.
- Fixed custom layout loading in the editor for layouts containing multi-span cells.
- Fixed unreliable auto-focus behaviour on empty URL input fields.