fix: resolve linting issues in example app

Author: pastordee

packages/flutter/pubspec.yaml

@@ -5,7 +5,7 @@ homepage: https://parseplatform.org
 repository: https://github.com/parse-community/Parse-SDK-Flutter
 issue_tracker: https://github.com/parse-community/Parse-SDK-Flutter/issues
 documentation: https://docs.parseplatform.org/flutter/guide
-publish_to: none
+
 
 funding:
   - https://opencollective.com/parse-server
@@ -27,7 +27,7 @@ dependencies:
     sdk: flutter
 
 
-  # parse_server_sdk: ">=9.4.2 <10.0.0"
+  parse_server_sdk: ">=9.4.2 <10.0.0"
   # Uncomment for local testing
   #parse_server_sdk:
   #   path: ../dart