Fixed incorrect TotalCount for MongoDB

[glen-84]

Summary of the changes (Less than 80 chars)

• Fixed incorrect TotalCount for MongoDB.

Closes #7642

---

CountAsync was being run on the sliced query instead of the original query.

⚠️ Change to public interface ICursorPaginationQueryExecutor.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.83%. Comparing base (ea858cf) to head (1fa8ff0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7669      +/-   ##
==========================================
- Coverage   73.86%   73.83%   -0.03%     
==========================================
  Files        2918     2918              
  Lines      151110   151114       +4     
  Branches    17555    17555              
==========================================
- Hits       111611   111572      -39     
- Misses      33679    33719      +40     
- Partials     5820     5823       +3     

Flag	Coverage Δ
unittests	73.83% <ø> (-0.03%)	⬇️

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[TradeeHubDev]

Hi just checking when will this get merged/released? All my counts on every table are broken so I can't navigate at all @glen-84

[michaelstaib]

@TradeeHubDev 14.1 will be released this week, the first preview should be out tonight.