fix(@vben/plugins): 修复 tiptap 重复注册扩展警告 (#7917)

StarterKit v3.22.0 已默认包含 Document、Link、Underline 扩展，
与单独导入产生重复注册，导致控制台警告：
[tiptap warn]: Duplicate extension names found: ['link', 'doc', 'underline']

- 移除 Document 单独导入和使用，StarterKit 已内置
- 移除 Underline 单独导入和使用，StarterKit 已内置
- StarterKit 配置中添加 link: false，禁用内置 Link，
  保留自定义配置的 Link.configure({...})

packages/effects/plugins/src/tiptap/extensions.ts

@@ -9,14 +9,12 @@ import { $t } from '@vben/locales';
 
 import { alert } from '@vben-core/popup-ui';
 
-import Document from '@tiptap/extension-document';
 import Highlight from '@tiptap/extension-highlight';
 import Image from '@tiptap/extension-image';
 import Link from '@tiptap/extension-link';
 import Placeholder from '@tiptap/extension-placeholder';
 import TextAlign from '@tiptap/extension-text-align';
 import { Color, TextStyle } from '@tiptap/extension-text-style';
-import Underline from '@tiptap/extension-underline';
 import { Plugin, PluginKey } from '@tiptap/pm/state';
 import StarterKit from '@tiptap/starter-kit';
 
@@ -405,13 +403,12 @@ export function createDefaultTiptapExtensions(
   options: VbenTiptapExtensionOptions = {},
 ): Extensions {
   return [
-    Document,
     StarterKit.configure({
       heading: {
         levels: [1, 2, 3, 4],
       },
+      link: false,
     }),
-    Underline,
     TextAlign.configure({
       types: ['heading', 'paragraph'],
     }),