Pachli 2.4.0

New features:

- Notify user about severed relationships 
- Allow user to see poll results before voting, set list's reply policy
- Show "Notifications", "Followed hashtags" and lists item in left-nav 
- Auto-hide Image Viewer toolbar 

Fixes:

- Improve URL extraction when composing 
- Update tabs when lists are renamed or deleted 
- Ensure logging out accounts completes 
- Ensure files are fully downloaded before sharing 
- Update Finnish, Kabyle, and Spanish translations