* fix(annotator): enhance PDF context menu for translation and improve touch handling
* feat(annotator, shortcuts): add keyboard shortcuts for selection actions
* feat(annotator): reposition popups on scroll to enhance user experience
* feat(annotator): disable currently unsupported annotator functions for PDFs
---------
Co-authored-by: Huang Xin <chrox.huang@gmail.com>
* Larger area to toggle header/footer bar
* Don't show rounded window on web platform
* Disable tooltips on mobile platforms as there is no mouse pointer
* Dedupe voices from web speech API