refactor(servlet-core): 重构导入 StringUtils

- 将 StringUtils替换为 FeatUtils
- 更新相关导入语句
- 修改使用 StringUtils 方法的地方

Author: smthing

pages/src/content/config.ts

@@ -1,5 +1,5 @@
-import { defineCollection } from 'astro:content';
-import { docsSchema } from '@astrojs/starlight/schema';
+import {defineCollection} from 'astro:content';
+import {docsSchema} from '@astrojs/starlight/schema';
 
 export const collections = {
 	docs: defineCollection({ schema: docsSchema() }),

pages/src/content/docs/en/guides/about.mdx

@@ -4,7 +4,8 @@ sidebar:
     order: 1
 ---
 
-import {CardGrid, LinkCard, TabItem, Tabs,FileTree} from '@astrojs/starlight/components';
+
+import {FileTree, TabItem, Tabs} from '@astrojs/starlight/components';
 
 Smart-Servlet is a lightweight servlet container based on Jakarta Servlet 6.1 for Java 17 + environments.
 

pages/src/content/docs/en/guides/release_note.mdx

@@ -2,7 +2,8 @@
 title: Release Notes
 description: A reference page in my new Starlight docs site.
 ---
-import { LinkCard } from '@astrojs/starlight/components';
+
+import {LinkCard} from '@astrojs/starlight/components';
 
 ## v2.9 (2025-02-09)
 - 🛠️Remove the Attachment design in HttpServletRequestImpl.

pages/src/content/docs/en/index.mdx

@@ -16,7 +16,8 @@ hero:
       icon: external
 ---
 
-import { Card, CardGrid } from '@astrojs/starlight/components';
+
+import {Card, CardGrid} from '@astrojs/starlight/components';
 
 ## Features
 

pages/src/content/docs/en/reference/license.mdx

@@ -2,7 +2,8 @@
 title: Commercial License
 ---
 
-import { Badge,Card,LinkCard, CardGrid} from '@astrojs/starlight/components';
+
+import {Badge} from '@astrojs/starlight/components';
 
 
 ## License

pages/src/content/docs/guides/about.mdx

@@ -3,8 +3,8 @@ title: 1.1 概述
 sidebar:
     order: 1
 ---
-import {Image} from "astro:assets";
-import {CardGrid, LinkCard, TabItem, Tabs, FileTree, Aside} from '@astrojs/starlight/components';
+
+import {Aside} from '@astrojs/starlight/components';
 import Mermaid from '../../../components/Mermaid.astro';
 
 smart-servlet 是一个基于 Jakarta Servlet 6.1 规范的轻量级、高性能的 Servlet 容器，专为 Java 17+ 环境设计。

pages/src/content/docs/guides/install.mdx

@@ -3,8 +3,8 @@ title: 1.2 安装指南
 sidebar:
     order: 1
 ---
-import {Image} from "astro:assets";
-import {CardGrid, LinkCard, TabItem, Tabs, FileTree, Aside,Steps} from '@astrojs/starlight/components';
+
+import {Steps} from '@astrojs/starlight/components';
 
 #### 安装前准备
 

pages/src/content/docs/guides/release_note.mdx

@@ -2,7 +2,8 @@
 title: 1.3 发版记录
 description: A reference page in my new Starlight docs site.
 ---
-import { LinkCard } from '@astrojs/starlight/components';
+
+import {LinkCard} from '@astrojs/starlight/components';
 
 ## v3.0 (2025-03-15)
 - 🚀通过 Feat 的 Router 提供多 ServerContext 的路由匹配能力

pages/src/content/docs/index.mdx

@@ -16,7 +16,8 @@ hero:
       icon: external
 ---
 
-import { Card, CardGrid ,LinkButton,Icon} from '@astrojs/starlight/components';
+
+import {Card, CardGrid, LinkButton} from '@astrojs/starlight/components';
 import GithubDownloadCount from '../../components/GithubDownloadCount.astro';
 import PerformanceChart from '../../components/PerformanceChart.astro';
 

pages/src/content/docs/reference/license.mdx

@@ -1,7 +1,8 @@
 ---
 title: 商业授权
 ---
-import { Badge,Card,LinkCard, CardGrid} from '@astrojs/starlight/components';
+
+import {Badge} from '@astrojs/starlight/components';
 
 ## 许可证
 我们持续增强 smart-servlet 的核心能力并保持开源，希望可以满足大多数小企业的需求。