Master: add master status to "hyprctl clients/activewindow"

[lumikrynd]

Describe the feature

I am writing a script which does different things depending on if the active window is a master-window or not. It would be nice if I just could get that information directly with "hyprctl activewindow".

Why would it be beneficial

Scripting of keybindings with different effects depending on if the active window is a master window or not.
I personally need it for a script which toggles if the active window is a master window.

[vaxerski]

#11043