Fix SFSymbols build and link issue

[Kyle-Ye]

No description provided.

[augmentcode]

🤖 Augment PR Summary

Summary: Fixes the Example Xcode build/link by adding SFSymbols.xcframework to the project and linking it into the app targets.

Changes: Conditionally imports SFSymbols in NamedImage.swift when OPENSWIFTUI_LINK_SFSYMBOLS is enabled so symbol lookup code compiles and links correctly.

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[augmentcode]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 13.99%. Comparing base (6945325) to head (f0cb1db).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #811      +/-   ##
==========================================
- Coverage   13.99%   13.99%   -0.01%     
==========================================
  Files         624      624              
  Lines       37809    37809              
==========================================
- Hits         5291     5290       -1     
- Misses      32518    32519       +1     

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