Set prgname to application ID

Using the application ID ensures that Wayland compositors could match the window with the application and show the appropriate icon for them.

Author: City-busz

usr/lib/webapp-manager/webapp-manager.py

@@ -44,6 +44,8 @@ def __init__(self, application_id, flags):
         Gtk.Application.__init__(self, application_id=application_id, flags=flags)
         self.connect("activate", self.activate)
 
+        GLib.set_prgname("webapp-manager")
+
     def activate(self, application):
         windows = self.get_windows()
         if len(windows) > 0: