修改sass为node-sass，避免el-icon图标乱码

RuoYi

2020-08-18 5fcf342f5a08cc7dec3bdd53445c6c5c69c52b80

 ruoyi-ui/src/store/modules/user.js

@@ -58,7 +58,7 @@
          } else {

            commit('SET_ROLES', ['ROLE_DEFAULT'])

          }

          commit('SET_NAME', user.username)

          commit('SET_NAME', user.userName)

          commit('SET_AVATAR', avatar)

          resolve(res)

        }).catch(error => {