make add city page - prefill estimate cost based on interpolation of nearby cities #nomads

sort recommended cities by nomad score so it looks better #nomads (for @flowen)

style % diff in tags on city page

extract top keywords from reviews to summarize city #nomads

add /similar/city page description e.g. "Similar cities to Amsterdam are Brussels, London and Paris" #nomads

Facet search on cities #webtastic

make add city page - prefill air quality from AQIcn #nomads

fix /cities #nomads