refactor(repo): refactor llc and add additional functionalities

[xsahil03x]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 83.85093% with 26 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.95%. Comparing base (3b033f2) to head (4ba52fd).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ges/stream_core/lib/src/utils/list_extensions.dart	81.69%	13 Missing ⚠️
packages/stream_core/lib/src/utils/standard.dart	41.66%	7 Missing ⚠️
packages/stream_core/lib/src/query/filter.dart	90.24%	4 Missing ⚠️
packages/stream_core/lib/src/query/sort.dart	94.28%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main       #6       +/-   ##
===========================================
+ Coverage   32.80%   83.95%   +51.14%     
===========================================
  Files          30        5       -25     
  Lines         695      162      -533     
===========================================
- Hits          228      136       -92     
+ Misses        467       26      -441     

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