v6 codemod: FatalErrorPage

[Tobbe]

Codemod to fetch the FatalErrorPage from the create-redwood-app template and replace the current one in the project

For release notes:
Make sure to warn people that their current DevFatalPage will be overwritten. So if they have made any changes to it, they might want to make this change manually. If they don't they'll lose all their customizations.

If you want to do this change manually, this is what it does:

 // still render a generic error page, but your users will prefer something a bit more
 // thoughtful. =)

-// Ensures that production builds do not include the error page
-let RedwoodDevFatalErrorPage = undefined
-if (process.env.NODE_ENV === 'development') {
-  RedwoodDevFatalErrorPage =
-    require('@redwoodjs/web/dist/components/DevFatalErrorPage').DevFatalErrorPage
-}
+// This import will be automatically removed when building for production
+import { DevFatalErrorPage } from '@redwoodjs/web/dist/components/DevFatalErrorPage'

-export default RedwoodDevFatalErrorPage ||
+export default DevFatalErrorPage ||
   (() => (
     <main>
       <style

[notion-workspace]

Codemod for DevFatalErrorPage

[dac09]

@Tobbe do you think you could add a diff to the readme (and PR) (i.e. manual steps) it'll make it easier for Dom with the release notes.