Improve Flow Layout

[dplewis]

I believe we can break this up into multiple PR's

This PR covers half of the flow errors (out of 375) without functionality changes.

The next half will need to be reviewed with a fine tooth comb

[codecov]

Codecov Report

Merging #790 into master will increase coverage by <.01%.
The diff coverage is 93.13%.

@@            Coverage Diff             @@
##           master     #790      +/-   ##
==========================================
+ Coverage   92.01%   92.01%   +<.01%     
==========================================
  Files          54       54              
  Lines        4908     4909       +1     
  Branches     1087     1087              
==========================================
+ Hits         4516     4517       +1     
  Misses        392      392

Impacted Files	Coverage Δ
src/CoreManager.js	100% <ø> (ø)	⬆️
src/ParseFile.js	97.51% <ø> (ø)	⬆️
src/Storage.js	96.15% <100%> (ø)	⬆️
src/ParseObject.js	90.02% <100%> (ø)	⬆️
src/LocalDatastore.js	98.66% <100%> (-0.02%)	⬇️
src/ParseSession.js	89.74% <100%> (ø)	⬆️
src/parseDate.js	100% <100%> (ø)	⬆️
src/ParseConfig.js	87.95% <100%> (ø)	⬆️
src/LocalDatastoreController.react-native.js	100% <100%> (ø)	⬆️
src/InstallationController.js	91.3% <100%> (ø)	⬆️
... and 4 more

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[acinader]

this looks good to me. Can you give some insight on you thinking about the switch to flow-weak?

[dplewis]

I removed it in this case. Its used when you can't figure out flow type errors or there are too many to handle at the present moment.