[Bugfix] Fix EDDN queue not processing at startup

Workaround the `.after()` queue being cleared (or invalidated) when the
widget that call was made through is destroyed after that call is made,
which in this case resulted in the EDDN queue not being processed until
some other action re-triggered processing of the EDDN queue.

plugins/eddn.py

@@ -183,7 +183,7 @@ class EDDNSender:
             f"First queue run scheduled for {self.eddn.REPLAY_STARTUP_DELAY}ms from now"
         )
         if not os.getenv("EDMC_NO_UI"):
-            self.eddn.parent.after(self.eddn.REPLAY_STARTUP_DELAY, self.queue_check_and_send, True)
+            self.eddn.parent.winfo_toplevel().after(self.eddn.REPLAY_STARTUP_DELAY, self.queue_check_and_send, True)
 
     def sqlite_queue_v1(self) -> sqlite3.Connection:
         """