Features

• Draggable and snaps to the nearest screen edge
• Two open modes:
  • FloatingMenuExpendableOpenMode.side: panel opens horizontally next to the handle
  • FloatingMenuExpendableOpenMode.vertical: panel opens below the handle (or above if near bottom)
• Background barrier with blur + color, dismissible on tap
• UI customization via FloatingMenuExpendableStyle
• FloatingMenuExpendableController for open/close/toggle and side tracking

New:

• Expand from the handle (unified handle + panel) using expandPanelFromHandle
• Switch handle content while open using handleOpenChild (defaults to a close icon)
• Anchored overlay for grid/list items using FloatingMenuAnchoredOverlay (does not affect layout)