fix(@aws-amplify/datastore): Make save return a single model instead …

[manueliglesias]

…of array

Issue #, if available:
Fixes #5099

Description of changes:
DataStore.save was incorrectly returning the very same array that storage.save was returning. It should only return the first element of that array, which corresponds to the model being saved.

Note: The array is internally used to notify observers of newly created connected models

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #5199 into master will not change coverage by %.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #5199   +/-   ##
=======================================
  Coverage   73.21%   73.21%           
=======================================
  Files         193      193           
  Lines       11441    11441           
  Branches     2218     2218           
=======================================
  Hits         8377     8377           
  Misses       2916     2916           
  Partials      148      148           

Impacted Files	Coverage Δ
packages/datastore/src/datastore/datastore.ts	70.80% <100.00%> (ø)

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[Ashish-Nanda]

Good catch. LGTM!

[github-actions]

This pull request has been automatically locked since there hasn't been any recent activity after it was closed. Please open a new issue for related bugs.

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