Floating notes for the dsh web GUI

Key features

• Floating dock — an animated notebook icon on the right edge of the chat window, one click away at all times.
• Drag it anywhere (the position persists)
• Configurable placement & size — in Settings → Plugins → Plugin Configuration the dock can be set to floating (draggable) or fixed (pinned to the chat window's top-right corner, not draggable), and the button size to Small / Regular / Large.
• Changes apply live — no reload.
• Notes panel — slide-over panel with search, a note list (title, preview, tags, relative time), and per-note actions.