feat:移动端除了pdf其他全部处理成图片预览

jydocs-mobile/src/views/details/details.vue

@@ -69,7 +69,7 @@
       >
         <div class="unread-num">
           <span class="line"></span>
-          剩余{{ unreadPage }}页未读，
+          剩余{{ unreadPage }}页未读
           <span class="line"></span>
         </div>
         <div class="handle-span" @click="readAll">{{ guideText }}