Show other in pin box and dont allow edits on it

@rogatty @RafLeszczynski @nandy-andy @aquilax This is a fix for the js error breaking all the map if there are points in 'other' category.
How about extracting it to separate method and cache the results? This way every time we call `editPointTypes()` we won't iterate through all POI categories. However, AFAIK `editPointTypes()` is being called once per request, so it's up to you :smile_cat: