Changed the first property of game capture to be a "mode" list (with
"any fullscreen window", "specific window", and "hotkey").
When hotkey mode is set, it'll add a hotkey pair to hotkey settings to
activate/deactivate game capture. When the hotkey to activate is
pressed, it'll treat the current foreground window as the target window
similar to "selected window" mode; it'll keep trying to capture the same
window even if the window or its application closes/reopens, and will
continue to do so until deactivated via the deactivate hotkey, or until
a new window is set via the activate hotkey.
17667b8b9d