f1715e67bd
model_holder.cc modified to disable multi-threaded compilation for WASM builds. index.html `animate()` function modified so the animation rendering loop executes asynchronously with async/await calls. These changes are sufficient to make xml files without references work (e.g., humanoid.xml), more work is needed to make the vfs work so multi-file models can load. PiperOrigin-RevId: 885537402 Change-Id: I3469cae48e7268073be334b99bf907c5ed8c27a7