Add deprecation notice and redirect to new Polaris library#14053

divinejojolola-shopify wants to merge 2 commits intomainShopify/polaris-react:mainfrom

09-12-add_deprecation_notice_and_redirect_to_new_polaris_libraryShopify/polaris-react:09-12-add_deprecation_notice_and_redirect_to_new_polaris_libraryCopy head branch name to clipboard