Update app.py

app.py

@@ -213,7 +213,7 @@ def clear_all(history, uploaded_file_paths, chats):
     for key, value in dic_history.items():
         c.setFont("Courier", 12) 
         c.drawString(USER_X, MARGIN + LINE_SPACING, "Nutzer: " + key)
-        c.setFont("Monaco", 12) 
+        c.setFont("Courier", 12) 
         c.drawString(USER_X + COLUMN_WIDTH, MARGIN + LINE_SPACING, "Assistent: " + value)
         # Linie trennen
         c.line(TIMESTAMP_X, MARGIN + LINE_SPACING + ROW_HEIGHT, ASSISTANT_X + COLUMN_WIDTH, MARGIN + LINE_SPACING + ROW_HEIGHT)