perf[json-editor]:refine css

src/components/JsonEditor/index.vue

@@ -62,6 +62,9 @@ export default {
   height: auto;
   min-height: 300px;
 }
+.json-editor >>> .CodeMirror-scroll{
+  min-height: 300px;
+}
 .json-editor >>> .cm-s-rubyblue span.cm-string {
   color: #F08047;
 }