细节调整

线路材质&位置调整，海拔图区间优化，loading动画只执行一次问题解决，小地图的球替换成圆形图片

Assets/Resources/UI/Prefab/Ride/MiniMapPlayer.prefab

@@ -30,7 +30,7 @@ Transform:
   m_GameObject: {fileID: 3777003654129381334}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
-  m_LocalScale: {x: 15, y: 15, z: 15}
+  m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
   m_RootOrder: 0