emscripten: fix for target HTML element id for the resize callback.
emscripten: fix for target HTML element id for the resize callback.

Use EMSCRIPTEN_EVENT_TARGET_WINDOW instead of NULL as target parameter for resize callback after moving to latest Emscripten version.

floooh/oryol,floooh/oryol,floooh/oryol,floooh/oryol,floooh/oryol,floooh/oryol