Create a workaround for Flatpak Fonts start up.

On Silverblue, Fonts cannot be started using the menu_launch_type
for the first time, or it starts and crashes immediately.
However, if Fonts are started with flatpak run org.gnome.font-viewer,
it seems that the application starts and holds.
Let's start it using this workaround and when it still crashes, let's restart.

needles/gnome/apps/fonts/fonts_liberation_font_found-20240223.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "height": 162,
+      "type": "match",
+      "xpos": 236,
+      "ypos": 165,
+      "width": 159
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "fonts_liberation_font_found"
+  ]
+}

tests/applications/fonts/aaa_setup.pm

@@ -11,10 +11,25 @@ sub run {
     # set the update notification timestamp
     set_update_notification_timestamp();
 
-    # Start the application
-    menu_launch_type("fonts");
+    my $crash = 1;
+
+    # Workaround on Silverblue
+    # https://gitlab.gnome.org/GNOME/gnome-font-viewer/-/issues/78
+    if (get_var("SUBVARIANT") eq "Silverblue") {
+        # Open the command line
+        send_key("alt-f2");
+        sleep(2);
+        # Start the application with a command and let it crash
+        type_very_safely("flatpak run org.gnome.font-viewer\n");
+        # In case it does not crash, remember it.
+        if (check_screen("apps_run_fonts", timeout => 30)) {
+            $crash = 0;
+        }
+    }
+    # Start the application, unless already running.
+    menu_launch_type("fonts") if ($crash == 1);
     # Check that is started
-    assert_screen 'apps_run_fonts';
+    assert_screen('apps_run_fonts', timeout => 60);
 
     # Fullsize the window.
     send_key("super-up");