Display modes & layout

Inline, picture-in-picture and fullscreen, and how to size a View.

Mode	Where	Typical use
`inline`	in the message list, as wide as the chat	cards, small tables, carousels
`pip`	a floating window that stays while the user scrolls	timers, players, live status
`fullscreen`	covers the chat	maps, editors, long lists

Read the current mode with useDisplayMode and request a change with useRequestDisplayMode. The host may refuse; available lists the modes it allows.

Sizing

Height: inline Views grow to their content; moonpeak reports size changes to the host automatically. Respect useMaxHeight and scroll inside the View beyond it.
Width: assume anything from 320 px (phones) to about 760 px. Test with the inspector's mobile device.
Safe areas: in fullscreen on phones, pad by useSafeArea.