Sync with currently open window via serial messages

[42Willow]

Similar to https://github.com/astridos2go/PyCurrentWindow.

There's two parts to this:

• Implementation on the host machine (a simple python script which can be edited according to OS/DE/WM specific requirements)
• Implementation on this macropad script

It shouldn't be too complex, the python script running on the host machine only needs to be able to send a test serial message because implementing every OS is too difficult.

What this solves Having to manually select the current application on the macropad, instead it is selected automatically when I window is changed. The application menu functionality should be retained though for if the "current window" program isn't running on the host machine.

[42Willow]

Never mind, there are already two existing PR's to implement serial communication.

• 5

• 14

It would be nice if one of them was reviewed and merged, as this feature would be very beneficial for productivity :)