some lint updates

[brody4hire]

I would be happy to split this into multiple PRs if needed.

[codecov[bot]]

Codecov Report

Merging #631 (99886cd) into master (70253e5) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #631   +/-   ##
=======================================
  Coverage   85.83%   85.83%           
=======================================
  Files          19       19           
  Lines         692      692           
  Branches      135      135           
=======================================
  Hits          594      594           
  Misses         78       78           
  Partials       20       20           

Impacted Files	Coverage Δ
src/computed-properties.js	100.00% <ø> (ø)

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