修改sass为node-sass，避免el-icon图标乱码

RuoYi

2020-08-18 5fcf342f5a08cc7dec3bdd53445c6c5c69c52b80

 ruoyi-ui/src/components/Editor/index.vue

@@ -66,7 +66,6 @@
      content: this.value,

      uploadImgUrl: "",

      editorOption: {

        placeholder: "",

        theme: "snow", // or 'bubble'

        placeholder: "请输入内容",

        modules: {