percent-based positioning for floating window

[redchar]

Exact same issue as Issue #27 but for the floating window.

Changing game screen size messes up the position of the floating window.

Using v2.2.4.1

[xorus]

This one you can drag back in. Unlike the countdown, this is more of an ImGui/Dalamud problem you will have with any other window as I don't have any control of the position of the window in the code.
Plugin windows get their positions saved internally in Dalamud with absolute pixel positions.
I could take it over but this would remove drag and drop and force me to add more code to be executed on each frame.
I will try to find a workaround for this in the future but I just do not have the time to do it now.