hypr: migrate runtime IPC calls to the Hyprland 0.56 Lua syntax

Hyprland 0.56 removed the string form of `hyprctl dispatch` and
`hyprctl keyword` entirely: the argument is now evaluated as Lua
(hl.dispatch expects a dispatcher object from hl.dsp.*), and `setprop`
lost the `noborder` property in favour of border_size 0. Everything
that shelled out to these silently broke — wlogout's logout button
did nothing, idle screen-off and lid-close DPMS died, borders stopped
tracking single-window workspaces, and display mirroring was gone.

All callers now use the documented forms: `hyprctl dispatch
"hl.dsp.*"` for dispatchers and `hyprctl eval "hl.monitor(...)"` for
monitor rules. dynamic-borders.sh gets a set_border() helper around
the new window.set_prop dispatcher.

wlogout layouts additionally cannot contain escaped quotes at all:
it parses them with jsmn, which never unescapes strings, so \" used
to reach the shell verbatim and break the command with a syntax
error. Actions now use single quotes only.

hypr/scripts/monitor-mirror.sh

@@ -21,6 +21,7 @@ if [[ -n "$mirror_of" ]]; then
     hyprctl reload
     notify-send "Mirror" "Off — reverted to default layout"
 else
-    hyprctl keyword monitor "$external,preferred,auto,1,mirror,$internal"
+    # hl.monitor via eval replaces the removed `hyprctl keyword` (Hyprland 0.56)
+    hyprctl eval "hl.monitor({output='$external', mode='preferred', position='auto', scale=1, mirror='$internal'})"
     notify-send "Mirror" "On — $internal → $external"
 fi