refactor(roleConfig): 调整角色配置对话框逻辑

- 将 watch 代码块的位置进行调整，移到 methods 前面
- 优化了 outerVisible监听器中的逻辑，根据不同类型初始化 formData

@@ -94,6 +94,14 @@ export default {
   watch: {
     outerVisible(val) {
       if (val) {
+        this.loadings.dialogLoading = false;
+        if (this.type == "update") {
+          this.formData = this.active;
+        } else if (this.type == "menuChange") {
+          this.formData = this.active;
+          this.searchTreeData();
+          this.loadCheckedKeys();//加载已绑定的菜单
+        }
       }
     },
   },
@@ -128,20 +136,6 @@ export default {
       loadingText: "",
     };
   },
-  watch: {
-    outerVisible(val) {
-      if (val) {
-        this.loadings.dialogLoading = false;
-        if (this.type == "update") {
-          this.formData = this.active;
-        } else if (this.type == "menuChange") {
-          this.formData = this.active;
-          this.searchTreeData();
-          this.loadCheckedKeys();//加载已绑定的菜单
-        }
-      }
-    },
-  },
   methods: {
     //查询菜单数据
     searchTreeData() {