v8.0 Release

New features in this release since 7.0:

- Class sorting
- Dark mode
- Animations
- Experimental UI animations
- Teacher assignment UI upgrade
- Teacher mastery UI upgrade
- New assignments parser
- New grades parser
- ID sorting system
- Changed settings API
- Responsive menus
- Class images on main page
- Fixed custom assignment sorting
- Fixed mastery reading and avgs
- Styling fixes
- New fast bug-addressing system
- And much more