chore: deprecate emptystate v2 prop

[davidmenendez]

Closes #7424

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.19%. Comparing base (076b303) to head (4858cea).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7810      +/-   ##
==========================================
- Coverage   84.24%   84.19%   -0.05%     
==========================================
  Files         443      443              
  Lines       18566    18566              
  Branches     4805     4805              
==========================================
- Hits        15640    15631       -9     
- Misses       2926     2935       +9     

Components	Coverage Δ
ibm-products	81.51% <ø> (-0.07%)	⬇️
ibm-products-web-components	91.18% <ø> (ø)

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[amal-k-joy]

Hi @davidmenendez ,
Everything looks good.
When we check the Storybook Props section, there's no indication that this prop is deprecated. This isn't limited to just this component but for others as well. Carbon Core uses the deprecated() method to achieve the same functionality.
cc: @elycheea

[elycheea]

@amal-k-joy Good point. I think we’ve added it to the prop descriptions. I know the slug included **Experimental:**, but I do think we aren’t the most consistent in how we handle deprecated props.

See APIKeyModal:

See anywhere with the slug:

See NotificationPanel:

Really not sure what’s going on with our formatting when it’s at the bottom, but definitely think we can/should look into this with our doc reviews.