Fix calibration json

calibration.json

@@ -7,14 +7,14 @@
         [-0.000650206827, 0.00640747030, -0.999979261]
       ],
       "translation_vector": [0.01383108, 0.04572205, -0.41864597]
+    },
+    "back_lens": {
+      "rotation_matrix": [
+        [-0.6909925, -0.72270667, 0.01498109],
+        [-0.72284182, 0.69097946, -0.00686258],
+        [-0.00539199, -0.01557095, -0.99986423]
+      ],
+      "translation_vector": [-0.03802397, 0.08226041, -0.38949371]
     }
-  },
-  "back_lens": {
-    "rotation_matrix": [
-      [-0.6909925, -0.72270667, 0.01498109],
-      [-0.72284182, 0.69097946, -0.00686258],
-      [-0.00539199, -0.01557095, -0.99986423]
-    ],
-    "translation_vector": [-0.03802397, 0.08226041, -0.38949371]
   }
 }