Hotkey Labeling Persistence Issue Across Images

[SISULU255]

Feature description and context

This enhancement is essential to ensure that the hotkey resets to "none" when transitioning to a new image. By doing so, the annotator gains more control over each image, avoiding accidental or unwanted labeling. This will significantly improve the user experience by reducing the need for additional steps to manually reset the hotkey, thus maintaining the tool's efficiency and accuracy in image annotation tasks.

Feature sign-off requirements

Automatic Hotkey Reset: Ensure that the hotkey selection resets to "none" when a new image is loaded.

Optional Persistence: If persistence of the hotkey is desired in certain scenarios, provide an option in the settings to toggle this feature on or off.

[simbamangu]

I can confirm that the hotkey - once selected - stays active on new images (after clicking 'done'), and if you have used it for a herd of buffalo in previous photo, for example, there's no way to unset the hotkey for current image and you're stuck doing buffalo.

Additional request: a button or another key to press to unset the current species hotkey.

[TanyaStere42]

I think the answer for the persistence issue here is going to be a user-by-user preference, so this will need to be something added to a user profile. The more immediate solution of just making the hotkey reset-able is gonna be addressed in #110 . This one will require a bit more thought, but is a great idea!