App router migration rollbar script

[boodland]

Issue link / number:

#1083

What changes did you make?

Used Script nextjs tag
Set script strategy to beforeInteractive
Added rollbar configuration to root layout
Moved Script from _document to _app as seems to be an outdated pages router documentation bug see:
https://stackoverflow.com/questions/73813720/next-script-does-not-work-inside-document-js-file-nextjs
https://nextjs.org/docs/pages/api-reference/components/script#beforeinteractive
This documentation seems also wrong as next/script is not working on _document
https://nextjs.org/docs/messages/no-script-in-document
The following error is no longer triggered
https://nextjs.org/docs/messages/no-before-interactive-script-outside-document

Now the script is loaded in both pages and app router

Why did you make the changes?

In order to be able to have google tag manager within app router

Did you run tests?

Yes

Navigate to http://localhost:3000/ to check that the head rollbar script is added properly

Navigate to http://localhost:3000/public-route-test to check that the head rollbar script is added properly

[vercel]

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