- Add source-map-support.
- Add source-map-support.

Thanks to HLFH and xet7 !

Closes #1889

GhassenRjab/wekan,wekan/wekan,wekan/wekan,wekan/wekan,libreboard/libreboard,GhassenRjab/wekan,libreboard/libreboard,wekan/wekan,wekan/wekan,GhassenRjab/wekan