:rocket: Features

• support css cascade layers (#19641) (4820347)
• VBtn: add new readonly prop (72f33dc)
• VNavigationDrawer: add new persistent prop (#19552) (74cc2bf)

:wrench: Bug Fixes

• VDataTable: add missing scss variable for loading opacity (69b5cc8)
• VDialog: adjust styling to better match material spec (383bbdc)

:microscope: Code Refactoring

• VSlideGroup: replace css transform with native scroll (#17286) (93bd7b5)

:test_tube: Labs

• VSpeedDial: proxy VMenu model (245f6d3)