feat(前端界面): 新增打印按钮

assets/webui/index.html

@@ -49,6 +49,7 @@
 				</select>
 				<button id="exportPageButton" class="button" type="button" data-short="单" title="导出单页" aria-label="导出单页" disabled>单页</button>
 				<button id="exportButton" class="button" type="button" data-short="全" title="导出文档 PDF" aria-label="导出文档 PDF" disabled>文档</button>
+				<button id="printButton" class="button" type="button" data-short="印" title="打印文档" aria-label="打印文档" disabled>打印</button>
 			</div>
 		</header>
 
@@ -137,7 +138,7 @@
 							<button id="fontDirectoryButton" class="small-button" type="button" title="添加字体目录" aria-label="添加字体目录">目录</button>
 						</div>
 					</div>
-					<div id="fontPermissionHint" class="font-permission-hint" hidden>需授权读取系统字体</div>
+					<div id="fontPermissionHint" class="font-permission-hint" hidden>系统字体需授权</div>
 					<div id="fontList" class="font-list"></div>
 				</section>
 			</aside>