wasm-webgpu: use emscripten APIs instead of SDL2
Refactors the webassembly webgpu render window to use emscripten's html5.h
and html_webgpu.h
. It now calls into emscripten_* APIs to create a surface and resize window.
Refactors the webassembly webgpu render window to use emscripten's html5.h
and html_webgpu.h
. It now calls into emscripten_* APIs to create a surface and resize window.