1253 request type selector not working

[nichhk]

Fixes #1253

Most of the changed lines are just the autoformatter doing work.

The actual code changes:

1. Make RequestsLayer a connected component such that its prop selectedTypes is synchronized with the redux state.filter.requestTypes.
2. Fix the typeFilter to operate on an array of typeIds, which is what the MapBox GL API expects.

Here we can see the map with only "Electronic Waste" selected:

And here's the map with all types selected:

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[ardada2468]

I think that should work.