Update app2.py

app2.py

@@ -73,10 +73,10 @@ main_panel_content = None
 # Function to reset the main panel content to the initial content and store the previous content
 def reset_main_panel(event):
     global main_panel_content
-    print(main_panel_content, flush = True)
-    if main_panel_content is not None:
+    print(main_panel_content.update, flush = True)
+    if main_panel_content is None:
         # Store the initial content of main_panel if it's not already stored
-        main_panel_content = main_body_instance.main_body
+        main_panel_content = main_body_instance.main_body.update
     
     # Reset the main panel to the initial state
     main_body_instance.main_body.clear()  # Clear the existing main panel content
@@ -174,7 +174,7 @@ template = pn.template.FastListTemplate(
     header_background="#FFFFFF",
     header_color="#000000",
     text_align='center',
-    sidebar_width=175,
+    sidebar_width=160,
     sizing_mode = 'stretch_both'
 )