Enable motion blur on WASM (#16893)

This feature was tested with WASM, WebGL, and WebGPU. It should work on
these targets. I think this was an oversight in the original PR.

Author: aevyrie

Cargo.toml

@@ -991,7 +991,7 @@ doc-scrape-examples = true
 name = "Motion Blur"
 description = "Demonstrates per-pixel motion blur"
 category = "3D Rendering"
-wasm = false
+wasm = true
 
 [[example]]
 name = "order_independent_transparency"