LockScreen: more sizing tweaks

Services/ScreenRecorderService.qml

@@ -67,7 +67,7 @@ Singleton {
     elif command -v flatpak >/dev/null 2>&1 && _gpuscreenrecorder_flatpak_installed; then
     flatpak run --command=gpu-screen-recorder --file-forwarding com.dec05eba.gpu_screen_recorder ${flags}
     else
-    notify-send "gpu-screen-recorder not installed!" -u critical
+    echo "GPU_SCREEN_RECORDER_NOT_INSTALLED"
     fi`
 
     // Use Process instead of execDetached so we can monitor it and read stderr
@@ -109,6 +109,14 @@ Singleton {
         // Process ended while we were pending - likely cancelled or error
         isPending = false
         pendingTimer.running = false
+        
+        // Check if gpu-screen-recorder is not installed
+        const stdout = String(stdout.text || "").trim()
+        if (stdout === "GPU_SCREEN_RECORDER_NOT_INSTALLED") {
+          ToastService.showError(I18n.tr("toast.recording.not-installed"), I18n.tr("toast.recording.not-installed-desc"), 7000)
+          return
+        }
+        
         // If it failed to start, show a clear error toast with stderr
         if (exitCode !== 0) {
           const err = String(stderr.text || "").trim()