Merge branch 'patch/ipc' into v0.6-a/patched-base

Merge branch 'patch/singletagset' into v0.6-a/patched-base

Merge branch 'patch/sticky' into v0.6-a/patched-base

Merge branch 'patch/swallow' into v0.6-a/patched-base

Merge branch 'patch/naturalscrolltrackpad' into v0.6-a/patched-base

Merge branch 'patch/movestack' into v0.6-a/patched-base

Merge branch 'patch/centeredmaster' into v0.6-a/patched-base

feat: access nth monitor

Fix getunusedtag, attachclients

If client is on multiple monitors, it should
be hidden, as the client is visible just on one of
the monitors, and on the other there is empty space instead

Unused tags are only the tags that are not on any
of the monitors.

feat: add sticky windows

feat: natural scrolling only for trackpad

generate patches

implement centeredmaster layout

inspiration: https://github.com/djpohly/dwl/wiki/centeredmaster

implement dwl-ipc-unstable-v2
https://codeberg.org/dwl/dwl-patches/wiki/ipc

put wlr_layer_shell top layer below fullscreen

fixes wlr_layer_shell top clients showing over fullscreen clients

do not set withdrawn state for xwayland clients

Closes: https://codeberg.org/dwl/dwl/issues/573

properly resize on configurex11

Fix rule examples; minimize newbie surprises

Make example rules be actual EXAMPLES.
Now newcomers should not have to ask, "When I start firefox, nothing
happens. What is going on?"

Also clarified a minor typo and a consistency in spacing.

fix virtual pointers

When motionabsolute() is called from warpd, event->time_msec is 0, so
motionnotify() doesn't call wlr_cursor_move(). Fix this by explicitly
warping the cursor in this case, like it was done before implementing
pointer constraints.

I don't know if this is a bug in warpd or time_msec is always 0 with
virtual pointers, since the only other software that uses the virtual
pointer protocol I know of is wl-kbptr, and I can't get that to work
with dwl at all.

Support pointer constraints and relative pointer protocols

Fixes: https://codeberg.org/dwl/dwl/issues/489
FIxes: https://codeberg.org/dwl/dwl/issues/317