Add Clapper usage as GTK widget

clapper_src/menu.js

@@ -1,4 +1,5 @@
 const { GObject, Gst, Gtk } = imports.gi;
+const Misc = imports.clapper_src.misc;
 
 var actions = [
     about
@@ -26,11 +27,11 @@ function about(window, appName)
     let aboutDialog = new Gtk.AboutDialog({
         program_name: appName,
         comments: 'A GNOME media player powered by GStreamer',
-        version: pkg.version,
+        version: Misc.getClapperVersion(),
         authors: ['Rafał Dzięgiel'],
         artists: ['Rafał Dzięgiel'],
         license_type: Gtk.License.GPL_3_0,
-        logo_icon_name: pkg.name,
+        logo_icon_name: 'com.github.rafostar.Clapper',
         website: 'https://github.com/Rafostar/clapper',
         modal: true,
         system_information: osInfo,