RICH_TEXT_V2 backend (#9848)

- Add RICH_TEXT_V2 composite type to backend.
- Add `bodyV2` field to tasks and notes.
- Minimum required frontend changes to avoid errors when creating a note

[Testing
instructions](https://github.com/twentyhq/twenty/pull/9690#issuecomment-2602378218)

---------

Co-authored-by: ad-elias <elias@autodiligence.com>
Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-server/src/engine/metadata-modules/field-metadata/utils/generate-default-value.ts

@@ -47,6 +47,11 @@ export function generateDefaultValue(
         primaryPhoneCallingCode: "''",
         additionalPhones: null,
       };
+    case FieldMetadataType.RICH_TEXT_V2:
+      return {
+        blocknote: "''",
+        markdown: "''",
+      };
     default:
       return null;
   }