Update comments where needed and make variables more readable

app.py

@@ -127,12 +127,13 @@ def bot(message, history, source_history) -> list[Any]:
     
     logger.info("Generated a response", response=response)
 
-    # TODO: Log response from source_history.py
+    # Append source details of the response to source history
     source_history = log_response(response, source_history, user_input_prompt)
 
     return [response["messages"][-1].content], source_history
 
 with gr.Blocks() as demo:
+    # Initialize source history as session state variable
     source_history = gr.State([])
 
     gr.Markdown("### Dies ist der aktuelle Prototyp der DEval AI4Kontextanalysen, mit dem Fokus auf dem Testen der Zitationsfunktion und der grundlegenden Konfiguration.")
@@ -150,8 +151,9 @@ with gr.Blocks() as demo:
         additional_outputs=[source_history],
         )
     with gr.Tab("Quellen"):
-        state_display = gr.Markdown()
-        source_history.change(prettify_source_history, source_history, state_display)
+        prettified_source_history_md = gr.Markdown()
+        # Update the source history UI immediately when the source_history value changes
+        source_history.change(prettify_source_history, source_history, prettified_source_history_md)
 
 if __name__ == "__main__":
     demo.launch(share=False, server_name="0.0.0.0")