message: Remove `react-dev-utils` error compatibility workaround
  To work around a `react-dev-utils` compatibility problem, errors and
  warnings had context stripped before being formatted.
  Since this workaround was was only needed until `react-dev-utils` v5 was
  release (now over a year ago, nice! [1]), I think that it can be
  removed.
  [1]
diff: @@ -122,15 +122,9 @@ async function build(config: webpack.Configuration, isCi: boolean) {
  warnings: true,
  errors: true,
  });
  - // NOTE(freben): The code below that extracts the message part of the errors,
  - // is due to react-dev-utils not yet being compatible with webpack 5. This
  - // may be possible to remove (just passing the serialized stats object
  - // directly into the format function) after a new release of react-dev-utils
  - // has been made available.
  - // See https://github.com/facebook/create-react-app/issues/9880
  const { errors, warnings } = formatWebpackMessages({
  - errors: serializedStats.errors?.map(e => (e.message ? e.message : e)),
  - warnings: serializedStats.warnings?.map(e => (e.message ? e.message : e)),
  + errors: serializedStats.errors,
  + warnings: serializedStats.warnings,
  });
  if (errors.length) {
  