- Introduced separate auto-save and user-save layout storage keys
- Added IMgGridBase methods for saving, loading, resetting, and checking user layouts
- Updated grid toolbar with "Layout" menu (load, save, reset) and new icons
- Improved layout persistence logic and default layout restore
- Enabled forced grid re-render on layout reset
- Adjusted grid pager and page size defaults
- Updated related components to use new storage keys
- Fixed minor bugs and set RELEASE log level to Debug