feat: 添加素材列表卡片标题显示

nkebao/src/pages/mobile/content/materials/list/index.tsx

@@ -363,7 +363,8 @@ const MaterialsList: React.FC = () => {
                     </div>
                     {renderContentTypeTag(material.contentType)}
                   </div>
-
+                  {/* 标题 */}
+                  <div className={style["card-title"]}>{material.content}</div>
                   {/* 内容预览 */}
                   {renderContentPreview(material)}