fix(blocks): Unhide "Add to Dictionary" block's dictionary input (#11175)

The `dictionary` input on the Add to Dictionary block is hidden, even
though it is the main input.

### Changes 🏗️

- Mark `dictionary` explicitly as not advanced (so not hidden by
default)

### Checklist 📋

#### For code changes:
- [x] I have clearly listed my changes in the PR description
- [x] I have made a test plan
- [x] I have tested my changes according to the test plan:
  - Trivial change, no test needed

autogpt_platform/backend/backend/blocks/data_manipulation.py

@@ -66,6 +66,7 @@ class AddToDictionaryBlock(Block):
         dictionary: dict[Any, Any] = SchemaField(
             default_factory=dict,
             description="The dictionary to add the entry to. If not provided, a new dictionary will be created.",
+            advanced=False,
         )
         key: str = SchemaField(
             default="",