Pachli 2.8.0

New features:

- Experimental preference to reverse home timeline
- Improve push and pull notification reliability

Fixes:

- Show posting app name if app link is missing
- Tolerate missing status fields on veganism.social
- Render hashtags, mentions, and initial paras correctly in RTL
- Search filters use correct colours in dark and black mode
- Update Finnish, Galician, Irish, Norwegian, and Spanish translations