Send a fullscreen / maximized size to all tiled windows on a fullscreen workspace

[vaxerski]

Discussion Link

https://github.com/hyprwm/Hyprland/discussions/9901

Description

When we switch between maximized windows, they glitch a bit because of the resize. We should size all of them to the fullscreen window's size to avoid this.

[parker-badgeinc]

Given the large amount of discussions and issues that you have within this project, I'd be happy to help out here if you could give me some direction. I'm not a C/C++ developer, so parsing the entire project would be a bit out of scope for me to attempt this work.

If it's easy for you to give a brief summary as to how you'd go about implementing this & where the primary changes would be in the code, I could at least make some attempts myself.

[vaxerski]

check CCompositor::setWindowFullscreenState, you'll find how the fullscreen fade-out is done. I'd probably do this in the same way