fix: 角色代码必填

frontend/src/views/system/role/index.vue

@@ -107,7 +107,8 @@ export default {
       rule: {
         name: [
           { required: true, message: '请输入名称', trigger: 'blur' }
-        ]
+        ],
+        code: [{ required: true, message: '请输入代码', trigger: 'blur' }]
       },
       currentRow: null,
       permission: {