优化图片视频编辑时边上方框

Assets/Resources/Template/Prefab/Image.prefab

@@ -64,8 +64,8 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   activation: 0
-  flattenAxis: 0
-  activeHandle: -2
+  flattenAxis: 3
+  activeHandle: 6
   m_HandlerAssets: {fileID: 0}
   activeScaleMinRestrict: 1
   scaleMinimum: 0.05

Assets/Resources/Template/Prefab/Video.prefab

@@ -1151,8 +1151,8 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   activation: 0
-  flattenAxis: 0
-  activeHandle: -2
+  flattenAxis: 3
+  activeHandle: 6
   m_HandlerAssets: {fileID: 0}
   activeScaleMinRestrict: 1
   scaleMinimum: 0.05