chore: removed unused var
feat: added custom  mesh as landmark

feat: added waxholm pt from camilla

fixes #91

now uses worker to parse, and render on a single layer,
should improve performance when rendering lots of landmarks

retrieved data may be array, maybe object

Should have been debounce, and the behavious is weird

loaded in the wrong template space

bugfix: kgentry now handles more edget case
feat: download directive

feat: using worker to make a single mesh for landmarks (pts only), added support for landmark selection

adding TODOs add distinct until changed for userlandmark... they currently gets destroyed and recreated every debounced viewer state change