Upgraded Dependencies

[DonIsaac]

- assert ^1.4.1 -> ^2.0.0
- karma ^2.0.0 -> ^6.0.0
- karma-webpack ^2.0.3 -> ^4.0.0
- karma-mocha ^1.3.0 -> 2.0.1
- mocha ^5.0.4 -> 9
- rimraf ^2.6.2 -> ^3.0.2
- snazzy ^7.0.0 -> ^9.0.0
- standard ^14.3.1 -> ^16.0.4
- puppeteer ^3.10 -> ^13.1.3
- Updated husky ^1.1.2 -> ^7.0.4
- pre-commit hook now only lints staged files

[codecov]

Codecov Report

Merging #266 (80e10c8) into master (2d51cee) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #266   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        13           
  Lines          235       234    -1     
=========================================
- Hits           235       234    -1     

Impacted Files	Coverage Δ
src/serialize.js	100.00% <0.00%> (ø)

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