Change subtyping of LazyNamedDimsArrayStyle

[mtfishman]

This helps to avoid ambiguity errors, see ITensor/NamedDimsArrays.jl#146.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.28%. Comparing base (633c54e) to head (2b46883).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #43   +/-   ##
=======================================
  Coverage   64.28%   64.28%           
=======================================
  Files          21       21           
  Lines         728      728           
=======================================
  Hits          468      468           
  Misses        260      260           

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