Templates update

Updating templates with latest work from tickit-templates repository.

TODO:

- [x] Update user listing
- [x] Update project listing
- [x] ~~Integrate `<select>` replacement~~ (discussed with @StuartRayson - this will be replaced by something else)
- [x] Fix selection checkboxes in listing templates
- [x] Integrate search sidr (does not need full search feature)
- [x] Integrate action menu in list views
- [x] ~~Integrate navigation API call with new navigation system~~ (will be done in #104)