Update JsonViewer.js

Fix code style

Author: superfaz

src/js/components/JsonViewer.js

@@ -8,7 +8,9 @@ export default class extends React.PureComponent {
  const namespace = [props.name];
  let ObjectComponent = JsonObject;
 
- const size = Array.isArray(props.src) ? props.src.length: Object.keys(props.src).length;
+ const size = Array.isArray(props.src)
+ ? props.src.length
+ : Object.keys(props.src).length;
  if (
  props.groupArraysAfterLength &&
  size > props.groupArraysAfterLength