Add application error handler to report unhandled and network issues

[joanagmaia]

Changes proposed ✍️

• Send all errors to log rocket. These error will then be alerted in a slack channel
• Will only be thrown for production

Tests can be seen here https://app.logrocket.com/nm6fil/crowddev/issues/ignored or in the #frontend-alerts new channels

Checklist ✅

• Label appropriately with Feature, Enhancement, or Bug.
• Tests are passing.
• New backend functionality has been unit-tested.
• Environment variables have been updated:
  • Local frontend configuration: frontend/.env.dist.local, frontend/.env.dist.composed.
  • Local backend: backend/.env.dist.local, backend/.env.dist.composed.
  • Configuration docs have been updated.
  • Team members only: update environment variables in override, staging and production env. files and trigger update config script.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.
• All changes have been tested in a staging site.
• All changes are working locally running crowd.dev's Docker local environment.

[mariobalca]

Thanks for doing this 🙌
Looking forward to have it running in production
Let's 🚢 it!