修复富文本编辑器由于内部z-index设置过高，遮住iview模态框的问题

Author: zhigang.li

src/components/editor/editor.vue

@@ -68,6 +68,8 @@ export default {
 }
 </script>
 
-<style>
-
+<style lang="less">
+.editor-wrapper *{
+  z-index: 100 !important;
+}
 </style>