Use a dimensions detecting root component. The Dimensions module does not
measure the app's view size, but the Window, which may not be the same, for
example on iOS when PiP is used.
Also refactor the aspect ratio wrap component since it can be taken directly
from the store.
Last, remove the use of DimensionsDetector on LargeVideo and TileView since they
occupy the full-screen anyway.
Fixes PiP mode on iOS.
* feat(tile-view): initial implementation for mobile
- Create a tile view component for displaying thumbnails in a
two-dimensional grid.
- Update the existing TileViewButton so it shows a label in the
overflow menu.
- Modify conference so it can display TileView while hiding
Filmstrip.
- Modify Thumbnail so its width/height can be set and to prevent
pinning while in tile view mode.
* use style array for thumbnail styles
* change ternary to math.min for expressiveness
* use dimensiondetector
* pass explicit disableTint prop
* use makeAspectRatioAware instead of aspectRatio prop
* update docs
* fix docs again (fix laziest copy/paste job I've ever done)
* large-video: rename onPress prop to onClick
* change forEach to for...of
* use truthy check fallthrough logic instead of explicit if
* put tile view button second to last in menu
* move spacer to a constant
* the magical incantation to make flow shut up