Pending edit icons look weird at lower zoom levels

Steps to reproduce:

- Create some edits while offline / not authorized so that they remain in a pending state
- Start zooming out of the map

There's a point where the icons for the OSM data on the map clear as you zoom out, but icons for pending edits remain - and lose their border become white.

Attaching screenshot where you can see the "Park" icon just to the top right of the Zoom in To Edit message.

Not sure what the best behaviour is, but I guess maybe just hide pending edits (`editsGeojson`) at the same time as hiding the OSM data when zooming out?


cc @geohacker