Request a reboot directly in the PTL firmware migration

Each pending user's one-time migration requests a reboot even when hardware setup has already installed the aliases. Let migration completion handle repeat runs and remove the shared marker and its privileged write.

Co-Authored-By: Greptile <165735046+greptile-apps[bot]@users.noreply.github.com>

migrations/1791265613.sh

@@ -1,15 +1,6 @@
 echo "Install the Dell XPS 13 Panther Lake speaker firmware"
 
 if omarchy-hw-dell-xps13-dx13260-ptl; then
-  firmware_pending="/run/omarchy/xps13-ptl-speaker-firmware"
-  if omarchy-pkg-missing linux-firmware-cirrus-dx13260; then
-    sudo install -Dm644 /dev/null "$firmware_pending"
-  fi
-
   source "$OMARCHY_PATH/install/hardware/dell-xps13-ptl-speaker-firmware.sh"
-
-  # The marker lasts until reboot so every user migrating beforehand is prompted.
-  if [[ -e $firmware_pending ]]; then
-    omarchy-state set reboot-required
-  fi
+  omarchy-state set reboot-required
 fi