Write middleware for handling tmdb errors

[KevinMidboe]

Do like started on movieInfo and showInfo. There we check the status codes right after our requests to themoviedb api.

Improvements:

• Check if the error is a http error.
• Create error response dictonary to throw http status code and error message from.
• Type safety

Example:

.catch(error => {
  if (error.status === 401) {
    throw new Error('Unathorized tmdb request, please check api key.')
  } else  if (error.status === 404) {
    throw new Error(`Could not find a movie with id: ${identifier}`)
  }

  throw new Error('Unexpected error has occured:', error.message)
})

[KevinMidboe]

Save for database errors