refactor: ♻️ 使用 useThrottleFn 替代 useDebounceFn，第一次点击立即执行，连续点击不重复提交

Former-commit-id: 04724284e7f4ec30d54a6f0eaec2770818c650e9

src/views/system/user/index.vue

@@ -231,7 +231,7 @@ function resetForm() {
 /**
  * 表单提交
  */
-const handleSubmit = useDebounceFn(() => {
+const handleSubmit = useThrottleFn(() => {
   userFormRef.value.validate((valid: any) => {
     if (valid) {
       const userId = formData.id;
@@ -255,7 +255,7 @@ const handleSubmit = useDebounceFn(() => {
       }
     }
   });
-}, 1000);
+}, 3000);
 
 /**
  * 删除用户