gemini quota exhausted: fixing regressions in test suite

tests/test_gui_symbol_navigation.py

@@ -1,5 +1,6 @@
 import pytest
 from unittest.mock import MagicMock, patch
+from src import gui_2
 from src.gui_2 import App
 
 @pytest.mark.parametrize("role", ["User", "AI"])
@@ -75,7 +76,7 @@ def test_render_discussion_panel_symbol_lookup(mock_app, role):
   mock_mcp.read_file.return_value = "class MyClass:\n pass"
   
   # Execute the panel rendering
-  mock_app._render_discussion_panel()
+  gui_2.render_discussion_panel(mock_app)
   
   # Assertions
   # 1. Assert that the regex correctly identifies the pattern and imgui.button('[Source]##0_0') is called