Full Rewrite

[maede97]

We should clean up the backend and frontend.

Currently, if a user uploads a gpx file, the file is sent to the backend. the backend parses the route and sends the data back to the frontend. finally, the frontend sends the route back to the backend using the "options" dictionary.

This makes it much harder to load waypoints from the gpx file itself, since we have to send them to the frontend and back (using new keys in the options dictionary).

• Importing Swisstopo GPX file should restore way_points in our app
• All backend API urls should have unit tests
• unit tests for other docker containers