Reproduction steps:
1. Set `strict: true` in `templates/website/tsconfig.json`
2. You will find a ts error in
`templates/website/src/components/RichText/index.tsx`.
This is because the blockType property of blocks is generated by Payload
as a literal (e.g. "mediaBlock") and cannot be assigned to a string.
To test this PR, you can make the change to `JSXConvertersFunction` in
node_modules of the website template