Notizen (PFA)

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- Theming (Light and Dark mode)
- Colored categories
- UI overhaul
- Better note sorting
- Confirmation Dialogs for deleting a note
- Convert text notes to checklists and vise versa
- Undo/Redo buttons for sketches
- Swipe to delete and drag-and-drop to reorder everywhere
- Opening a txt file automatically creates a new text note
- Sharing text with the notes app creates a new corresponding text note
- Bug fixes