fix(frontend): advanced-toggle-default (#8802)

- resolve #8739

I don't think so that this is a frontend issue [might be wrong] ,
because if we are not classifying that a particular input is `advanced =
true/false`. Then we automatically get `advanced = True`.

<img width="1142" alt="Screenshot 2024-11-27 at 10 36 59 AM"
src="https://github.com/user-attachments/assets/e8d9c037-5b8b-45b2-b40b-8390bc63de99">

autogpt_platform/backend/backend/data/model.py

@@ -120,7 +120,7 @@ def SchemaField(
     title: Optional[str] = None,
     description: Optional[str] = None,
     placeholder: Optional[str] = None,
-    advanced: Optional[bool] = None,
+    advanced: Optional[bool] = False,
     secret: bool = False,
     exclude: bool = False,
     hidden: Optional[bool] = None,