data: Add X-GNOME-Shell-Utilities.directory file to allow showing real name

Instead of having the name of the directory be X-GNOME-Utilities. This
also allows translating the name to the user's language. The name is
chose to be different to X-GNOME-Utilities from GNOME Menus.

In the process, also remove the categories. The menu definition from
gnome-menus is not used, and it's not a category that apps list
themselves, so it's completely unused anyway.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3526>

data/X-GNOME-Shell-Utilities.directory.desktop.in

@@ -0,0 +1,3 @@
+[Desktop Entry]
+Name=Utilities
+Type=Directory

data/meson.build

@@ -32,6 +32,15 @@ foreach desktop_file : desktop_files
   )
 endforeach
 
+i18n.merge_file(
+  input: 'X-GNOME-Shell-Utilities.directory.desktop.in',
+  output: '@BASENAME@',
+  po_dir: po_dir,
+  install: true,
+  install_dir: join_paths(datadir, 'desktop-directories'),
+  type: 'desktop',
+)
+
 serviceconf = configuration_data()
 serviceconf.set('libexecdir', libexecdir)
 foreach service_file : service_files

js/ui/appDisplay.js

@@ -58,8 +58,7 @@ const DIALOG_SHADE_HIGHLIGHT = new Cogl.Color({red: 0, green: 0, blue: 0, alpha:
 
 const DEFAULT_FOLDERS = {
     'Utilities': {
-        name: 'X-GNOME-Utilities.directory',
-        categories: ['X-GNOME-Utilities'],
+        name: 'X-GNOME-Shell-Utilities.directory',
         apps: [
             'gnome-abrt.desktop',
             'gnome-system-log.desktop',
@@ -1446,7 +1445,8 @@ class AppDisplay extends BaseAppView {
             });
             child.set_string('name', name);
             child.set_boolean('translate', true);
-            child.set_strv('categories', categories);
+            if (categories)
+                child.set_strv('categories', categories);
             if (apps)
                 child.set_strv('apps', apps);
         }

po/POTFILES.in

@@ -7,6 +7,7 @@ data/org.gnome.Shell.desktop.in.in
 data/org.gnome.shell.gschema.xml.in
 data/org.gnome.Shell.Extensions.desktop.in.in
 data/org.gnome.Shell.PortalHelper.desktop.in.in
+data/X-GNOME-Shell-Utilities.directory.desktop.in
 js/dbusServices/extensions/ui/extension-error-page.ui
 js/gdm/authPrompt.js
 js/gdm/loginDialog.js