[Bugfix] Fix FrameLayout maxFrame API

[Kyle-Ye]

Close #418

[codecov]

Codecov Report

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 19.13%. Comparing base (4bd1f28) to head (b39edbb).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
.../OpenSwiftUICore/Layout/Modifier/FrameLayout.swift	0.00%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #419   +/-   ##
=======================================
  Coverage   19.12%   19.13%           
=======================================
  Files         438      438           
  Lines       23735    23737    +2     
=======================================
+ Hits         4540     4542    +2     
  Misses      19195    19195           

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