refactor(tests): Add strict type hints to fourth batch of test files

tests/test_mma_ticket_actions.py

@@ -1,10 +1,11 @@
+from typing import Generator
 import pytest
 from unittest.mock import patch, MagicMock
 import asyncio
 from gui_2 import App
 
 @pytest.fixture
-def app_instance() -> None:
+def app_instance() -> Generator[App, None, None]:
  with (
   patch('gui_2.load_config', return_value={'ai': {}, 'projects': {}}),
   patch('gui_2.save_config'),
@@ -21,7 +22,7 @@ def app_instance() -> None:
   app._loop = MagicMock()
   yield app
 
-def test_cb_ticket_retry(app_instance):
+def test_cb_ticket_retry(app_instance: App) -> None:
  ticket_id = "test_ticket_1"
  app_instance.active_tickets = [{"id": ticket_id, "status": "failed"}]
  with patch('asyncio.run_coroutine_threadsafe') as mock_run_safe:
@@ -34,7 +35,7 @@ def test_cb_ticket_retry(app_instance):
   args, _ = mock_run_safe.call_args
   assert args[1] == app_instance._loop
 
-def test_cb_ticket_skip(app_instance):
+def test_cb_ticket_skip(app_instance: App) -> None:
  ticket_id = "test_ticket_1"
  app_instance.active_tickets = [{"id": ticket_id, "status": "todo"}]
  with patch('asyncio.run_coroutine_threadsafe') as mock_run_safe: