random fixes of raymarching demos

Author: tiye

vr-dive/Demos/BlueFlower/BlueFlowerRenderer.swift

@@ -174,4 +174,4 @@ extension BlueFlowerRenderer {
     desc.isDepthWriteEnabled = true
     return device.makeDepthStencilState(descriptor: desc)!
   }
-}
+}

vr-dive/Demos/BoxOfStars/BoxOfStarsRenderer.swift

@@ -174,4 +174,4 @@ extension BoxOfStarsRenderer {
     desc.isDepthWriteEnabled = true
     return device.makeDepthStencilState(descriptor: desc)!
   }
-}
+}

vr-dive/Demos/BoxOfStars/BoxOfStarsTypes.swift

@@ -7,4 +7,4 @@ struct BoxOfStarsUniforms {
   var boxScale: Float
   var padding: Float
   var objectCenter: SIMD4<Float>
-}
+}