DS-661: Replace Preact with React

[danielamorse]

Jira

• https://pegadigitalit.atlassian.net/browse/DS-661

Summary

Replace Preact renderer with React so that Bolt can include React/JSX files in the build.

Details

• Remove Preact-related dependencies and babel/webpack configurations and replace with latest versions of React equivalent.
• Upgrade react-autosuggest (used by Typeahead) for compatibility with latest React.
• Remove unused accessibility features (a11yStatusResults, a11ySelectedOption, etc.). These features are not actuall in use.
• Remove TypeaheadStatus component, which adds unnecessary accessibility customizations that I'm not sure even work as expected. The react-autosuggest library we are using is already WAI-ARIA compliant, with support for ARIA attributes and keyboard interactions.
• I tested this in real Drupal and it works as expected 🎉

How to test

• Test Typeahead demos and compare to current version.
• Use with VoiceOver (command + F5) and verify it announces the same/similar prompts as the demos on https://react-autosuggest.js.org/.

Release notes

• Preact dependency is replaced with React v18. Typeahead is now rendered with React.