rename: test_visualization.py

Author: MartinEBravo

tests/test_visualizations.py renamed to tests/test_visualization.py

@@ -4,7 +4,7 @@
 import pytest
 
 from agents import Agent
-from agents.extensions.visualizations import draw_graph, get_all_edges, get_all_nodes, get_main_graph
+from agents.extensions.visualization import draw_graph, get_all_edges, get_all_nodes, get_main_graph
 
 
 @pytest.fixture