Global keyboard shortcuts

[defaude]

Is your feature request related to a problem? Please describe.

It would be nice to have global keyboard shortcuts to control Overlayed features like e.g.

• toggling pined / unpinned mode to hide / show the channel tab header w/ buttons
• opening settings window
• quitting Overlayed
• etc.

What do you think?

Tauri should provide most of the heavy lifting needed to support global shortcuts already, so the implementation should not be too much effort, I think.

Describe the solution you'd like

Ideally, the settings UI added a new section for the actions that can be bound, where the user can set up their bindings. This could be done via actually having a "listener" mode where the user can just press the desired shortcut. Regarding the syntax for storing the shortcuts to the config: Why not just use Tauri's format?

These shortcuts should be - obviously - global, i.e. I can press the shortcut while I'm in a game, for example.

Describe alternatives you've considered

Alternatively (and simpler to implement), we could allow inputting a string that declares the desired shortcut, e.g. something like CtrlAltShift+o).

Even simpler is to just add an entry in our config.json without any GUI to start with.