* Initial Implementation
Still needs clear all functionality, various styles and spacing, and overall cleanup
* Second pass
Most of the styling issues are still present, but collapsing/expanding logic should be complete
* Third pass
* Refactors, comments, cleans up filters code
* Flatpickr color+placement changes
* Last(?) pass on UI
* Actually fixes sticky dates without breaking navigation
* Changelog
* Puts this back where it goes
* Updates based on @ukutaht's comments
- Removes Screenclass hook in favor of simple viewport size storage
- Uses class-based component
- Removes recheck variable in favor of tri-state wrapped
- General formatting & code cleanup
