fix(inventory): sw-356 empty state copy

[cdcabrera]

What's included

• fix(inventory): sw-356 empty state copy

How to test

Coverage and basic unit test check

1. update the NPM packages with $ yarn
2. $ yarn test
3. confirm tests come back clean

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. navigate to a product and...
   • confirm that the inventory messaging displays per the screenshot

Example

Updates issue/story

sw-356

[codecov-commenter]

Codecov Report

Merging #983 (3bb4363) into dev (2609829) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #983   +/-   ##
=======================================
  Coverage   93.79%   93.79%           
=======================================
  Files         129      129           
  Lines        4109     4109           
  Branches     1624     1624           
=======================================
  Hits         3854     3854           
  Misses        237      237           
  Partials       18       18           

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