Refractor auth logic

+ Add possibility (_requireAdminAuthentication, _requireTeamleaderAuthentication) to make auth optional
+ Add possibility to combine multiple auth types into one function

dev.sh

@@ -52,6 +52,7 @@ if [ "$RECREATE" = true ]; then
         -e DATABASE_URL="postgresql://server:server@postgres:5432/management?schema=public" \
         -e NODE_ENV="development" \
         -e PORT="${D_PORT}" \
+        -e JWT_SECRET="not_for_production" \
         -p "${D_PORT}":"${D_PORT}" \
         --entrypoint "/app/scripts/docker-entrypoint.dev.sh" \
         node