fix(websocket): propagate sanitizer flags to consumers for correct linking

- use PUBLIC compile options for sanitizer flags
- use INTERFACE link options to ensure final executables link with ASAN/UBSAN
- fix undefined reference to __asan_* and __ubsan_* in examples
- ensure consistent sanitizer behavior with static libraries

Author: GaspardKirira

CMakeLists.txt

@@ -218,11 +218,11 @@ if (WEBSOCKET_SOURCES)
   endif()
 
   if (VIX_ENABLE_SANITIZERS AND NOT MSVC)
-    target_compile_options(vix_websocket PRIVATE
+    target_compile_options(vix_websocket PUBLIC
       -fno-omit-frame-pointer
       -fsanitize=address,undefined
     )
-    target_link_options(vix_websocket PRIVATE
+    target_link_options(vix_websocket INTERFACE
       -fsanitize=address,undefined
     )
   endif()