(a) WebGPU -> Specification or browser API

(b) WGPU, gfx-rs/wgpu, wgpu.rs -> Rust crate implementing WebGPU

(c) wgpu -> the prefix used by the C API for all WebGPU native implementations.

(d) 'wgpu' -> a cute shorthand used by everyone to describe either (a), (b), or (c) with confusion.