Checklist

• Run cargo clippy.
• Run RUSTFLAGS=--cfg=web_sys_unstable_apis cargo clippy --target wasm32-unknown-unknown if applicable.
• Add change to CHANGELOG.md. See simple instructions inside file.

Connections
Potential improvement for #2985

Description
The previous error message was easily misunderstood, as it didn't say explicitly that each dimension and the total number must be below the bounds.

For example, instead of:

shader entry point current workgroup size [8, 8, 8] must be less or equal to [256, 256, 64] of total 256

after applying this PR the error is:

shader entry point current workgroup size [8, 8, 8] of total 512 must be less or equal to [256, 256, 64] and of total 256

Thanks to @mwalczyk for the original improvement idea 🙏

Testing
In shader.wgsl of the hello-compute example, I've changed the @workgroup_size(1) to @workgroup_size(8, 8, 8)