Enrich the onMutate description for context

[Thiamath]

I think is better to be explicit on this to improve the readability of the docs.

The context is passed to the three callbacks, onSuccess included.

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☁️ Nx Cloud last updated this comment at 2025-02-27 13:22:42 UTC

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.19%. Comparing base (84e8ae5) to head (2a02324).
Report is 19 commits behind head on v4.

Additional details and impacted files

@@            Coverage Diff             @@
##               v4    #8710      +/-   ##
==========================================
+ Coverage   95.16%   96.19%   +1.03%     
==========================================
  Files          13       26      +13     
  Lines         496      946     +450     
  Branches      179      279     +100     
==========================================
+ Hits          472      910     +438     
- Misses         23       30       +7     
- Partials        1        6       +5     

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