Make the "your kernel has been updated" check more resilient

bin/omarchy-update-restart

@@ -2,7 +2,21 @@
 
 echo
 
-if find /usr/lib/modules -maxdepth 2 -name vmlinuz -newermt "$(uptime -s)" 2>/dev/null | grep -q .; then
+running_kernel=$(uname -r)
+kernel_updated=false
+
+for kernel in /usr/lib/modules/*/vmlinuz; do
+  if [[ -f $kernel ]] && pacman -Qo "$kernel" &>/dev/null; then
+    installed_kernel=$(basename "$(dirname "$kernel")")
+
+    if [[ $installed_kernel != $running_kernel ]]; then
+      kernel_updated=true
+      break
+    fi
+  fi
+done
+
+if [[ $kernel_updated == "true" ]]; then
   gum confirm "Linux kernel has been updated. Reboot?" && omarchy-system-reboot
 elif [[ -f $HOME/.local/state/omarchy/reboot-required ]]; then
   gum confirm "Updates require reboot. Ready?" && omarchy-system-reboot