Reference to Amplify Studio in Gen 2 docs

[ykethan]

Describe the content issue:
A clear and concise description of what the content issue is. Is there content missing or is there incorrect content?
https://docs.amplify.aws/react/build-ui/formbuilder/validations/ , refers to Amplify studio Amplify Studio infers a range of
https://docs.amplify.aws/react/build-ui/formbuilder/customize/ , meta data description contains Amplify Studio

URL page where content issue is:

https://github.com/aws-amplify/docs/blob/main/src/pages/%5Bplatform%5D/build-ui/formbuilder/validations/index.mdx?plain=1
https://github.com/aws-amplify/docs/blob/main/src/pages/%5Bplatform%5D/build-ui/formbuilder/customize/index.mdx?plain=1