New Features:
- Made extensive updates to port TreeLine to the Qt6 and PyQt6 libraries.
- Added a word count function for math field types.
Updates:
- Removed deprecated string escapes used when formatting numbers.
Bug Fixes:
- Fixed errors closing a window if the same file is open in another window.
- Fixed a problem with the filter view when the tree icon is set to none.
- Improved the handling of multi-line text in generic XML import.