WIP about deep cloning and Y axis and object sharing bug

src/views/Compare/Dashboard/index.vue

@@ -570,8 +570,9 @@ export default {
           };
           break;
       }
-
+      
-      return [primeVueSetData, primeVueSetOption]
+      // JSON.parse(JSON.stringify()) wouldn't work
+      return [primeVueSetData, primeVueSetOption];
     },
     /**
      * 建立長條圖