Added action to restore previously closed tab(s)
Hi! This is my first every KDE merge request so hopefully I've followed the right procedure. Please let me know if there is anything I need to correct. This merge request resolves 463269
Changes made:
- Added action to restore the most recently closed tab (or tabs if multiple were closed at once)
- Added unit test class for KateDocManager
- Added unit tests for new restore tab functionality
Happy to make any changes, just let me know. Thanks!