chore(release): bump version to 0.33.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packaging/release-notes.md.tmpl

@@ -3,6 +3,7 @@
 Notebook app for pen, touch and mouse on Linux (tested on Zorin OS 18 / Ubuntu 24.04).
 
 ### Highlights:
+- **Palm rejection & more feedback**: A hand resting on the screen while the pen is near is ignored (also on the title bar, no more accidental paste menu or window moving); the eraser has four sizes (button below the eraser modes, remembered); the page overview shows imported PDF pages; snapped triangles, rectangles and polygons have the same width on every side; a selection made with the pen's select button can be moved with the bare pen
 - **Feedback round**: The endless canvas starts at the top left and only grows to the right and down; new text fields start short and grow with the text; toolbar buttons are larger again on small screens; on Wayland the title bar buttons (close, minimize, maximize) and moving the window work with a finger
 - **View only**: 👁 in the toolbar hides the tools – pen, finger and mouse only scroll and zoom (the pen glides on like a finger), nothing can be changed by accident; tap 👁 again to write
 - **Text box fix**: Ctrl+Plus/Minus now only zooms the page, no longer the whole interface as well – that made text jump to another place when leaving a text box