[FEEDBACK] Missing tsconfig.json file in Amplify Tutorial for React

**Describe the content issue**:
There should be a mention that if the user has decided to use Typescript, they will need to add a tsconfig.json file manually otherwise the project won't be able to find the GraphQL imports.

**URL page where content issue is**:
https://docs.amplify.aws/start/getting-started/data-model/q/integration/react/#connect-frontend-to-api

Open the React tutorial at the linked URL and inspect the “Connect frontend to API” section, especially the TypeScript path. Update the guidance to mention manually adding tsconfig.json so GraphQL imports resolve, then verify the revised instructions are clear for both JavaScript and TypeScript users.

Written by the indexing model from the issue text.