Investigate single imports with underscore (named exports)

We have a few places where we only import a single method from underscore. @filipa mentioned that since underscore only exports _, it'd be best to follow the docs in case something changes on their end or our tooling which ends up breaking things.

import { escape } from 'underscore';
...
import { throttle } from 'underscore';
...

Perhaps babel is just taking care of this for us with some destructuring magic (would need to look into our babel config/presets).

To find our current usages, search for import {.*underscore(with regex on)