DSH desktop client

Key features

• Overall layoutThe three-column Grid coverage is 0 minmax(0,1fr) 0, and the middle column occupies the full width.
• Runtime client services (provided by other client packages on the host side): slots, layout, locale
• Sidebarleft drawer (left displacement animation), content components fill the width of the drawer
• Hamburger buttonshell.overlay slot floating button (upper left corner, safe area adaptation), click mask to close
• Conversation headerLeave space for hamburger, title/operation can be wrapped, "conversation/track" label is centered with the center line of the screen as the axis of symmetry