Merge branch 'fix-segfault-in-fullscreennotify'

don't use fullscreen event in fullscreennotify()

always call arrange() on setfullscreen()

also don't count full screen clients on tile()

print status about floating and fullscreen

more style fixes

suckless style: don't use '//' for comments

use loop to call arrangelayer

zwlr_layer_shell_v1_layer are ordered by bottom-most first so we can
just use a loop from 3 to 0

Merge pull request #196 from noocsharp/main

die on allocation failure

use wlr_box for previous geom

don't warn about unused result

Closes: #186

replace tabs by spaces in alignment

fix crash when the last monitor is disconnected

update URL to wlroots project (GitHub->GitLab)

Merge pull request #187 from fauxmight/new-clients-printstatus

Newly launched or closed clients ALWAYS generate status update

Merge pull request #149 from xi/fix-grabc-unmap

reset cursor mode when grabc is unmapped

remove typedef `Decoration`

die on allocation failure

Merge pull request #181 from Armael/fix-client_set_tiled

fix client_set_tiled which is currently ignoring its "edges" argument

Merge pull request #160 from Humm42/closepipes

-s: close unused fds

Merge pull request #189 from fauxmight/shift-6-is-asciicircum

Shift+6 generates XKB_KEY_asciicircum