PERF: Low hanging optimization fruit

[davidascher]

Based on yarn analyze, I see a few likely easy wins:

• [x] swap out moment.js for something that just does what we need re: '2 days ago'
• [x] use webpack route splitting to make sure we only load some of the heavier things when we need them:
  • [x] quill in edit views
  • [x] leaflet in home page on desktop
  • [x] we're likely to get rid of choropleth, which will remove world-countries and chroma.js
  • [x] only load auth0 on login. This will drag along immutable
• [ ] see if there's a way to import from reactstrap only what we need -- answer: not yet, maybe when CRA uses tree shaking w/ webpack 2.

Starting point today: 2.65MB. let's see how low we can take it.

• 2.44 after getting rid of moment

[davidascher]

After code-splitting auth0, mapbox, and quill, we're down to 1.48. (see https://github.com/participedia/frontend/pull/299)

[davidascher]

Next best approach is lightening images: #302