[FEATURE] Add eventListeners for the stick and/or mouse movement

[xalbertus]

Right now the PromptIcon script only refreshes when a button is pressed (for example if the last device used is the keyboard and then you move the gamepad sticks, the PromptIcon is not updated). I would like the possibility to update when the gamepad sticks or the mouse move, not only with the InputSystem.onAnyButtonPress.

Thanks a lot for the work!

[thsbrown]

Hey hey, see my pull request 👍

[simonoliver]

Hey - sorry it's taken so long to address this - very snowed under with work a the mo.