Project revision

These are the things that should be improved after reviewing your application:

**Functionality issues**
- Rebuild the login process. Hide login button when a user is logged in. Show user name or its picture when a user is logged in.
- Fix the upload gpx route feature
- Remove or update settings page
- Finish the share route option
- Allow users to post a comment in a route

**Code issues**
- Acceptance tests
- Properly configure codecov to ignore files that shouldn't be tested using jest

No files, tests, or entry points are named. First split the request into separately scoped work for login, GPX upload, settings, sharing, route comments, acceptance tests, and Jest/codecov configuration; locate each relevant area before starting. Done means each selected behavior is implemented or corrected and covered by the appropriate tests.

Written by the indexing model from the issue text.