better wgsl code style

wgpu/src/shader/triangle.wgsl

@@ -1,18 +1,18 @@
 struct Globals {
     transform: mat4x4<f32>,
-};
+}
 
 @group(0) @binding(0) var<uniform> globals: Globals;
 
 struct VertexInput {
     @location(0) position: vec2<f32>,
     @location(1) color: vec4<f32>,
-};
+}
 
 struct VertexOutput {
     @builtin(position) position: vec4<f32>,
     @location(0) color: vec4<f32>,
-};
+}
 
 @vertex
 fn vs_main(input: VertexInput) -> VertexOutput {