Avoid unnecessary observable notifications of Iterable or Map fields

[amondnet]

Describe the changes proposed in this Pull Request.

Following up on pr #844, perform deep equals if value is Iterable or Map.

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Pull Request Checklist

• If the changes are being made to code, ensure the version in pubspec.yaml is updated.
• Increment the major/minor/patch/patch-count, depending on the complexity of change
• Add the necessary unit tests to ensure the coverage does not drop
• Update the Changelog to include all changes made in this PR, organized by version
• Run the melos run set_version command from the root directory
• Include the necessary reviewers for the PR
• Update the docs if there are any API changes or additions to functionality

[codecov]

Codecov Report

Merging #951 (51e1462) into main (a00d4da) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 51e1462 differs from pull request most recent head 5281253. Consider uploading reports for the commit 5281253 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #951      +/-   ##
==========================================
- Coverage   99.00%   98.99%   -0.01%     
==========================================
  Files          57       57              
  Lines        2000     1997       -3     
==========================================
- Hits         1980     1977       -3     
  Misses         20       20              

Flag	Coverage Δ
flutter_mobx	100.00% <ø> (ø)
mobx	98.56% <100.00%> (+<0.01%)	⬆️
mobx_codegen	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
mobx/lib/src/core/atom_extensions.dart	100.00% <100.00%> (ø)
mobx/lib/src/core/observable.dart	100.00% <100.00%> (ø)
mobx/lib/src/utils.dart	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[netlify]

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Name	Link
🔨 Latest commit	5281253

[pavanpodila]

Will need to go to 2.2.3 as a previous PR took that version @amondnet

[amondnet]

@pavanpodila done