书栖网修改为书单网；用户反馈页面内容修改；修改nginx 5xx报错信息；删除前端console输出的法律信息

bookshelfplus-frontend/views/component/navbar.html

@@ -3,7 +3,7 @@
         <div class="grid-item"></div>
         <div class="grid-item">
             <nobr>
-                <h1 onclick="location.href='/'" style="cursor: pointer; display: inline;">书栖网</h1>
+                <h1 onclick="location.href='/'" style="cursor: pointer; display: inline;"><%= site.short_title %></h1>
             </nobr>
         </div>
         <div class="grid-item exnarrowHide" style="text-align: right; color: white;">