wait for monitor to be attached before launching firefox (#2005)

* wait for monitor to be attached before launching firefox

* add code to kill firefox on monitor disconnect

* fix detection for the pi

* Remove Pi only logic

* chore: Remove the kiosk mode

Co-authored-by: Aiden McClelland <me@drbonez.dev>
Co-authored-by: J M <2364004+Blu-J@users.noreply.github.com>
Co-authored-by: BluJ <mogulslayer@gmail.com>

build/lib/scripts/enable-kiosk

@@ -57,6 +57,15 @@ EOT
 while ! curl "http://localhost" > /dev/null; do
     sleep 1
 done
+while ! /usr/lib/embassy/scripts/check-monitor; do
+    sleep 15
+done
+(
+    while /usr/lib/embassy/scripts/check-monitor; do
+        sleep 15
+    done
+    killall firefox-esr
+) &
 matchbox-window-manager -use_titlebar no &
 firefox-esr http://localhost --profile $PROFILE
 rm -rf $PROFILE