Expose redux devtools in production

[olemartinorg]

Description

When making apps, it could be helpful to view the source redux state in the frontend while manipulating input fields in your app (and observing the effects in the formData.formData state). Exposing the redux devtools in production builds shouldn't be problematic, and in fact, some big players seem to be doing it.

Related issues

• Se nærmere på kompliserte valideringer for SSB  altinn-studio#8369

Tasks

• Add documentation for this here: https://docs.altinn.studio/app/testing/local/debug/
  • Adding docs for debugging frontend altinn-studio-docs#665