Change background z-axis position to 1

Author: adamgraham

Assets/Scenes/Flappy Bird.unity

@@ -1062,7 +1062,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1949728348}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalPosition: {x: 0, y: 0, z: 1}
   m_LocalScale: {x: 24, y: 10.666667, z: 1}
   m_Children: []
   m_Father: {fileID: 0}