Display Is Published column correctly in main Product Listing

[gabmartinez]

I want to merge this change because use the isPublished instead of isAvailabled property in the main Product Listing.

resolve #426

Screenshots

Main Product Listing

Collection Product Listing

Pull Request Checklist

1. All visible strings are translated with proper context.
2. All data-formatting is locale-aware (dates, numbers, and so on).
3. Translated strings are extracted.
4. Number of API calls is optimized.
5. The changes are tested.
6. Type definitions are up to date.
7. Changes are mentioned in the changelog.

[codecov]

Codecov Report

Merging #475 into master will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #475      +/-   ##
==========================================
+ Coverage   72.35%   72.39%   +0.04%     
==========================================
  Files         658      658              
  Lines        7436     7440       +4     
  Branches     1227     1227              
==========================================
+ Hits         5380     5386       +6     
  Misses       1819     1819              
+ Partials      237      235       -2     

Impacted Files	Coverage Δ
src/products/fixtures.ts	90.00% <ø> (ø)
...rc/products/components/ProductList/ProductList.tsx	56.60% <100.00%> (+3.77%)	⬆️
src/storybook/stories/products/ProductListPage.tsx	100.00% <100.00%> (ø)

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