useGridDimensions: useSyncExternalStore implementation

[nstepien]

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[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.57%. Comparing base (48597e7) to head (1f1bd62).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3968      +/-   ##
==========================================
+ Coverage   97.54%   97.57%   +0.03%     
==========================================
  Files          36       36              
  Lines        1467     1487      +20     
  Branches      472      478       +6     
==========================================
+ Hits         1431     1451      +20     
  Misses         36       36              

Files with missing lines	Coverage Δ
src/DataGrid.tsx	98.98% <100.00%> (-0.01%)	⬇️
src/hooks/useGridDimensions.ts	100.00% <100.00%> (ø)

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