* Detect WM_HINTS popup (yabridge popups fix)
Many windows popups have:
WM_HINTS(WM_HINTS) Client accepts input or input focus: False
Which is a good indicator window SHOULD be a popup.
This is true for example on yabridge plugins and some other apps.
However toplevel windows have this property True. In order to
differentiate them we check if there are no decorations on the window
(client) and this property is False.
Its applied ONLY to _NET_WM_WINDOW_TYPE_NORMAL windows since its most
generic one that comes up.
This was tested across many apps: Reaper, Ardour, Godot, MaterialMaker,
PixelOver, PixelComposer, Steam, Steam games (both windowed and
fullscreen), Fusion 9, Unity and others I have.
There are no regression seen in any of tested apps and fixes yabridge
popups.
Additionally check if MOTIF has functions that should not be in popup
Combine wmhint popup check with skip_taskbar.
wmhint is only considered to be a popup if application has skip_taskbar
atom.
Fixed edgecases so far:
BattleNet spawning as popupp
PixelComposer spawning as popup
645ca1125b