This makes the code a bit more consistent and lets us avoid some
hacky and probably non-performant things:
- abusing CSS classes in the draw/drag datum functions (classed `.target`)
(is this thing target? just check d.properties)
- regexing the id for `-nope$`
(is this thing a nope target? just check d.properties)
- using context.hasEntity to get a the real entity
(is this thing a real osmEntity? just check d.properties)
- fixes code like the restriction editor which uses fake ids for split ways
Old menu behavior can be restored with 2 cookies:
- `edit-menu-style=radial` - Display menu as a radial menu, limited to 8 items
- `edit-menu-show-always=1` - Show menu on all clicks, not just contextmenu/right
Fixed
- On reselecting multiple entities, right click doesn’t discard selection
- On selecting new entity, right click discards previous selection
- Preserved shift selection for both left & right click
