Apply uv transform in the prepass (#13250)

# Objective

- The UV transform was applied in the main pass but not the prepass.

## Solution

- Apply the UV transform in the prepass.

## Testing

- The normals in my scene now look correct when using the prepass.

crates/bevy_pbr/src/render/pbr_prepass.wgsl

@@ -54,9 +54,9 @@ fn fragment(
 #ifdef STANDARD_MATERIAL_NORMAL_MAP
 
 #ifdef STANDARD_MATERIAL_NORMAL_MAP_UV_B
-        let uv = in.uv_b;
+        let uv = (material.uv_transform * vec3(in.uv_b, 1.0)).xy;
 #else
-        let uv = in.uv;
+        let uv = (material.uv_transform * vec3(in.uv, 1.0)).xy;
 #endif
 
         // Fill in the sample bias so we can sample from textures.