[Feature Request] Properly match spec for bottom sheets

[pscheit]

Problem to solve

Bottom Sheets in vuetify have not all features that bottom sheets in the spec have. Especially this

https://storage.googleapis.com/spec-host-backup/mio-components%2Fassets%2F10oN2rj2F4Ju3jJUg6wFCRqA_G5TsWQUm%2Fbehavior-visibility-standard.mp4

Proposed solution

a) allow bottom sheets to be expanded with a swipe-up motion (and some desktop equivalent)
b) when expanded to fullscreen, a computed should be set, that can be queried to show un-expand buttons
c) when expanded the bottom sheet should scroll

Thanks so much for writing vuetify!

[vchrisb]

That would be great! 💯

[johnleider]

We currently have similar functionality set up on navigation drawer in v3 but only for the x-axis and plan to integrate it at some point (probably when another use-case for the drag functionality is needed).