[WIP] Upgrade Dependencies

[solomonhawk]

WORK IN PROGRESS

Pending feedback from @nhunzaker

Deploy preview: https://deploy-preview-157--colonel-kurtz.netlify.app/

Note: still working on a few remaining things.

Upgrading prettier yielded some different formatting style things which affect a majority of the code. I broke this out into it's own commit so hopefully viewing the other changes isn't too difficult (by looking at individual commits). As a result, the "files changed" view is going to be a little noisy.

I also messed this up a bit - you can see a lot of the files (mostly tests) touched as part of ee899b47 were auto-formatted by my editor. Sorry :(

Questions:

• Is specifying node 12.13 too prescriptive? I think most of the updated deps here would be satisfied by node 10.x
• What am I forgetting to update/change?

TODO:

• Review all docs to ensure they are up to date, carve out a spot for a note about upgrading (mainly just not needing to call editor.start() and the change from editor.listen(fn) to editor.on('change', fn))
• Bump major version
• Update Changelog with new version #
• Tag & push, release to NPM

[codecov-io]

Codecov Report

Merging #157 into master will decrease coverage by 0.18%. The diff coverage is 96.42%.

@@            Coverage Diff             @@
##           master     #157      +/-   ##
==========================================
- Coverage   93.91%   93.72%   -0.19%     
==========================================
  Files          33       34       +1     
  Lines         296      303       +7     
  Branches       43       43              
==========================================
+ Hits          278      284       +6     
- Misses         16       17       +1     
  Partials        2        2              

Impacted Files	Coverage Δ
src/actions/blocks.js	80.00% <ø> (ø)
src/components/App.js	100.00% <ø> (ø)
src/components/BlockTypeGroup.js	14.28% <ø> (ø)
src/components/EditorBlock.js	100.00% <ø> (ø)
src/utils/insertAt.js	100.00% <ø> (ø)
src/utils/siblingAt.js	100.00% <ø> (ø)
src/components/Block.js	92.30% <80.00%> (ø)
src/components/SwitchNav.js	89.47% <83.33%> (-4.65%)	:arrow_down:
src/Colonel.js	100.00% <100.00%> (ø)
src/components/Animator.js	100.00% <100.00%> (ø)
... and 14 more

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[solomonhawk]

@nhunzaker Just a gut check is all I was really looking for. We're poised to take ownership here but I wanted to give you an opportunity to surface any relevant thoughts, opinions, or history/guidance.