Fix syntax highlighting (#105)

Prevent errors

Fix bugs (#103)

Unfinished convert app

Update util.js

Refactor of `this.#write()`

Harmonize upload() signature

Reordering

Harmonize `upload()` signatures

more oops

oops

gitlab backend changes

Finish prev commit, also meaningful `backend.get()` that is now used by the GitLab backend

Move the bulk of `this.request()` to `Backend`

Use normal words