LibDesktop: Add support for RequiresRoot option to AppFile

Author: https://github.com/ne0ndrag0n
Commit: 7fc22896ee
Pull-request: https://github.com/SerenityOS/serenity/pull/15446
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/linusg
Reviewed-by: https://github.com/timschumi ✅

Userland/Libraries/LibDesktop/AppFile.h

@@ -32,6 +32,7 @@ public:
     String icon_path() const;
     GUI::Icon icon() const;
     bool run_in_terminal() const;
+    bool requires_root() const;
     Vector<String> launcher_mime_types() const;
     Vector<String> launcher_file_types() const;
     Vector<String> launcher_protocols() const;