Eight items under the admin menu had a misspelled parent state,
breaking the parent/child relationship for the skydive submenu.
Also reparents the qcm submenu to skydive (was sitting at the root).
Aligns environment.* shape with TypeScript convention.
Renames: api_url -> apiBaseUrl, api_key -> apiKey,
use_api_key -> useApiKey, refresh_interval -> refreshInterval,
google_map_api_key -> googleMapApiKey.
The local environment.{ts,development.ts,local.ts} files are
gitignored and have already been migrated; this commit updates
the tracked example file and the only consumer (apiInterceptor).
julien
Rampeur