Support for Chiaki navigation using a controller

[veerpandya]

What platform does your feature request apply to?
Desktop. My use case is specifically for Raspberry Pi OS, but it would be convenient on any desktop os.

Is your feature request related to a problem? Please describe.
I want to integrate Chiaki into my RetroPie setup. This means I would ideally not have a keyboard or mouse connected and just have a controller for navigation. Currently I need to use a mouse to select the PS4 and begin the remote play session.

Describe the solution you'd like
It would be incredibly convenient to be able to use a connected controller to navigate the Chiaki interface and begin the remote play session. Using the dpad of the controller to highlight options and then having X or O to select the option would be great.

Describe alternatives you've considered
The current alternative I have is to use a program like qjoypad to map the controller to mouse movement and clicks and then navigate the menu that way.

Additional context
In summary, it would be really helpful if Chiaki menu navigation could be done using a connected controller instead of a mouse.