next.js

8f64c5cf - refactor: merge the same util to detect nextjs navigation errors (#67672)

refactor: merge the same util to detect nextjs navigation errors (#67672) ### What `isNavigationSignalError` is the same util as `isNextRouterError`, we only need to keep one. In `isNextRouterError` we don't have to check `error` and `error.digest` since it's already did in side the util