fix(productViewMissing): relax proptypes

[cdcabrera]

What's included

• fix(productViewMissing): relax proptypes

Notes

• also corrects a minor box shadow issue

How to test

Proxy run check

1. update the NPM packages with $ yarn
2. make sure Docker is running, plus on network, then
3. $ yarn start:proxy
4. confirm the box shadow does NOT display below the product cards

Example

before, box shadow

Updates issue/story

Relates #630

[codecov-commenter]

Codecov Report

Merging #649 (ca4506d) into ci (cf49ba0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##               ci     #649   +/-   ##
=======================================
  Coverage   93.79%   93.79%           
=======================================
  Files          87       87           
  Lines        2641     2641           
  Branches      924      924           
=======================================
  Hits         2477     2477           
  Misses        141      141           
  Partials       23       23           

Impacted Files	Coverage Δ
src/components/productView/productViewMissing.js	95.23% <ø> (ø)

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