Added event handling support to VisNetwork and enhanced component documentation

tests/controls/test_layout.py

@@ -35,15 +35,6 @@ class TestLayoutBehaviour:
     assert layout._main_content == content
     assert result == layout  # Should return self for chaining
   
-  def test_i_can_set_footer_content(self, root_instance):
-    """Test setting footer content."""
-    layout = Layout(root_instance, app_name="Test App")
-    content = Div("Footer content")
-    
-    layout.set_footer(content)
-    
-    assert layout._footer_content == content
-  
   def test_i_can_add_content_to_left_drawer(self, root_instance):
     """Test adding content to left drawer."""
     layout = Layout(root_instance, app_name="Test App")