fix: add script to webpack build (in dev) for storybook support

[danielroe]

cc: @farnabaz

• closes Cannot read property 'preference' of undefined inside Storybook #69

[codecov]

Codecov Report

Merging #99 (03fbb5c) into master (2ca9edc) will decrease coverage by 17.85%.
The diff coverage is 16.66%.

@@             Coverage Diff              @@
##            master      #99       +/-   ##
============================================
- Coverage   100.00%   82.14%   -17.86%     
============================================
  Files            2        2               
  Lines           22       28        +6     
  Branches         2        4        +2     
============================================
+ Hits            22       23        +1     
- Misses           0        4        +4     
- Partials         0        1        +1     

Impacted Files	Coverage Δ
lib/module.js	76.19% <16.66%> (-23.81%)	⬇️

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