Reorganized room navigation, member list and collapsible chat. Keep watching in picture-in-picture while using the main chat.
Visible tiles request a small preview about every 3 seconds. Select a stream for live video and audio; other tiles have no continuous video or stream audio. Room voice stays available. Both sides need this update for previews.
Fixed the chat toggle being covered and signal details disappearing after volume controls collapsed. Refined the paperclip icon and rounded picture-in-picture corners.