src,doc,test: accept SharedArrayBuffer in napi_create_typedarray

[umuoy1]

This PR updates napi_create_typedarray() to accept SharedArrayBuffer in addition to ArrayBuffer.

Today, napi_create_dataview() already accepts both ArrayBuffer and SharedArrayBuffer, but napi_create_typedarray() still only accepts ArrayBuffer. This creates an inconsistency in Node-API behavior and does not align with JavaScript semantics, where TypedArrays can be backed by SharedArrayBuffer.

[nodejs-github-bot]

Review requested:

• @nodejs/gyp
• @nodejs/node-api

[codecov]

Codecov Report

❌ Patch coverage is 63.88889% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.80%. Comparing base (dfe438d) to head (265fa6f).

Files with missing lines	Patch %	Lines
src/js_native_api_v8.cc	63.88%	1 Missing and 12 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62710      +/-   ##
==========================================
- Coverage   89.81%   89.80%   -0.02%     
==========================================
  Files         699      699              
  Lines      216379   216384       +5     
  Branches    41366    41374       +8     
==========================================
- Hits       194340   194317      -23     
- Misses      14139    14142       +3     
- Partials     7900     7925      +25     

Files with missing lines	Coverage Δ
src/js_native_api_v8.cc	76.10% <63.88%> (-0.40%)	⬇️

... and 33 files with indirect coverage changes

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