always set the same monitor and tags for child clients of a client

fixes #272

remove a useless check

if `s->role_data == NULL`, wlr_*_surface_from_wlr_surface() will return NULL
and we are checking it

respect size hints

unconstrain layer shell popups

also unconstrain popups from monitor's usable area

move ugglyness to client.h

improve client_from_wlr_surface()

add a new function to get a client from a wlr_surface

Check if XWayland client size_hints are NULL

fix segfault when dragging chromium tabs

add missing return in client_is_floating_type()

This causes all Xwayland clients to be treated as floating

improve floating detection

mostly copied from sway

Merge pull request #204 from djpohly/scenegraph3

merge scenegraph3

Merge branch 'main' into scenegraph

do not allow set client size less than its min size

constraint popups to its parent client

Closes: #146
Closes: #155

Merge branch 'main' into scenegraph

Merge branch 'fix-segfault-in-fullscreennotify'

don't use fullscreen event in fullscreennotify()

Merge pull request #181 from Armael/fix-client_set_tiled

fix client_set_tiled which is currently ignoring its "edges" argument

fix client_set_tiled, which was ignoring its "edges" argument