feat: 新增图片资源及组件功能优化

style: 调整CSS样式及修复链接样式问题

refactor: 重构item-head和item-bottom组件逻辑

fix: 修复section-index页面导航链接问题

perf: 优化滚动加载及URL参数处理

docs: 更新组件文档及注释

test: 添加组件测试用例

build: 更新依赖配置

chore: 清理无用代码及资源

img/comment-icon-gray.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<svg version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" width="14px" height="13px" xmlns="http://www.w3.org/2000/svg">
+  <defs>
+    <filter x="-50.00%" y="-50.00%" width="200.00%" height="200.00%" filterUnits="objectBoundingBox" id="filter571">
+      <feColorMatrix type="matrix" values="1 0 0 0 0.4  0 1 0 0 0.4  0 0 1 0 0.4  0 0 0 1 0  " in="SourceGraphic" />
+    </filter>
+  </defs>
+  <g transform="matrix(1 0 0 1 -1740 -5324 )">
+    <image preserveAspectRatio="none" style="overflow:visible" width="14" height="13" xlink:href="data:image/png;base64,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" x="1740px" y="5324px" filter="url(#filter571)" />
+  </g>
+</svg>

img/menu-icon-gray.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" width="14px" height="14px" xmlns="http://www.w3.org/2000/svg">
+  <defs>
+    <filter x="-50.00%" y="-50.00%" width="200.00%" height="200.00%" filterUnits="objectBoundingBox" id="filter572">
+      <feColorMatrix type="matrix" values="1 0 0 0 0.4  0 1 0 0 0.4  0 0 1 0 0.4  0 0 0 1 0  " in="SourceGraphic" />
+    </filter>
+  </defs>
+  <g transform="matrix(1 0 0 1 -1686 -5323 )">
+    <image preserveAspectRatio="none" style="overflow:visible" width="14" height="14" xlink:href="data:image/png;base64,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" x="1686px" y="5323px" filter="url(#filter572)" />
+  </g>
+</svg>