update map tile server url for new catalog

[rshewitt]

all map instances need to use nginx for tile requests (cloudfront on prod)

How to reproduce

• spatial filtering uses open street map tile url. it needs to be updated to let nginx handle it (i.e. /maptiles/{z}/{x}/{y}.png)

Expected behavior

• map tile url uses nginx

Actual behavior

• map tile url is open street map (i.e. https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png)

Sketch

• update the url to use nginx

[FuhuXia]

all map tiles are loaded from /maptiles
domain tile.openstreetmap.org is removed from csp.