2.8.17

What's new

• Added a movable floating map legend: drag it by the legend header to place it anywhere on the map.
• Added legend collapse/expand controls so users can keep the map clean while still keeping the legend nearby.
• Added a reset action that returns the legend to the default corner selected in the visual editor.
• The legend now remembers its moved position and collapsed state locally with the map display settings.
• Updated the README to describe the draggable, collapsible legend behavior.