This PR updates the React monorepo tutorial.
- Remove video embeds since the content is outdated (e.g. shows old TS
setup) -- we have a separate task to update and add back later
- Update the generated files to ensure they are in sync
- Update to show Playwright instead of Cypress since that is the default
- Remove one mention of `project.json` for configuration, and point to
the Inferred Tasks page instead to learn how tasks are automatically
configured
- Update code example for `apps/react-store/src/app/app.tsx` to render
`Welcome react-store` instead of `Home` so that unit and e2e tests still
pass without having to update those as well (better for the flow of the
tutorial)