refactor(gitlab_service): convert service to TypeScript
Closes #220 (closed)
This MR is the last of TS migration. After the 600+ LOC gitlab_service
is converted, the rest of the codebase can be converted as a part of normal feature work.
This MR cleans up two or three methods in the gitlab_service
but mainly tries to leave the code as is and just add the type definitions necessary for the TS compilation to pass.
Edited by Tomas Vik