Introduce manage view for ak tracks
This view can be used to sort aks into tracks using drag and drop. You can also create new ak tracks or delete them.
- Add js dependency for drag and drop of lists.
- Activate add, update, delete methids to AKTrack API and update method to AK API.
- Add and link (on status page) new admin view for management.
- Add tags list property to AK model.
- Introduce translations for AKScheduling app.
- Update translations.
This implements #112 (closed)
This merge request also includes the changes proposed in !89 (merged) since they are needed for this to work. Hence !89 (merged) should be merged before this.