Feature Request: Customizable Shortcuts for Non-Standard Tablets (e.g., GAOMON) I'd like to suggest adding support for customizable keyboard shortcuts.

[Idiotawa]

Reason:
I use a GAOMON tablet (not a mainstream brand like Wacom). Currently, rnote fails to correctly recognize the buttons on my stylus. The pen's buttons don’t emit unique hardware events; instead, they’re mapped to generic keyboard actions. As a result, the button settings in rnote’s preferences don’t work for my device.

Request:
Would the team consider implementing user-defined keyboard shortcuts? This would greatly improve compatibility for non-Wacom devices.

(Note: My original request was in Chinese. This English version was AI-assisted for clarity. Please let me know if any details need clarification!)

[Doublonmousse]

--> tracked in #590