fix(windows): silence experimental coroutine deprecation in example app

MSVC treats STL1011 as an error via /WX; this suppresses the deprecation
warning from permission_handler_windows until the package is updated.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ashifali3147

example/windows/CMakeLists.txt

@@ -27,7 +27,7 @@ set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
 set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
 
 # Use Unicode for all projects.
-add_definitions(-DUNICODE -D_UNICODE)
+add_definitions(-DUNICODE -D_UNICODE -D_SILENCE_EXPERIMENTAL_COROUTINE_DEPRECATION_WARNINGS)
 
 # Compilation settings that should be applied to most targets.
 function(APPLY_STANDARD_SETTINGS TARGET)