Change user overview graph form so it updates on newly added Add button click, which now adds images in a list. Clicking on generated graph images in list removes them from dom

app.py

@@ -219,7 +219,7 @@ def graph_user_workouts(user_id):
     if htmx:
         return f"""
         <img src="{request.full_path}"
-        loading="lazy" alt="No image" class="mx-auto">
+        loading="lazy" alt="No image" class="mx-auto" _="on click remove me">
         """
     user = User.query.get(user_id)
     workouts = user.workouts
@@ -236,6 +236,8 @@ def graph_user_workouts(user_id):
 
     attributes = request.args.getlist(
         'attributes', type=str)
+    if not attributes:
+        return ""
 
     period = request.args.get('period', default='day', type=str)