Optimisation: lines loading
Problems when there is a lot of lines:
- Image shows only after transcriptions are loaded (should be fixed in develop)
- Transcriptions are not paginated?
- Line creation in the dom is wayyyyyyy too sloooooow
- No indication that transcriptions are loading
use case: http://ns342141.ip-5-196-76.eu/document/139/part/9099/edit/
Edited by Robin Tissot