修复受限添加bug

app/view/setting/user.ejs

@@ -3,7 +3,7 @@
     <div class="panel-title">
         <div class="title-main">
             <h2>账号管理
-                <% if (projectData.max_user > user_total) { %>
+                <% if (projectData.max_user === 0 || projectData.max_user > user_total) { %>
                 <a href="#ver" data-toggle="modal" data-target="#add-user" class="btn btn-primary btn-sm pull-right">添加账号</a>
                 <% } else { %>
                 <a href="#add-unpass" data-toggle="modal" data-target="#add-unpass" class="btn btn-primary btn-sm pull-right">添加账号（受限）</a>

app/view/setting/user_permission.ejs

@@ -3,7 +3,7 @@
     <div class="panel-title">
         <div class="title-main">
             <h2>账号管理
-                <% if (projectData.max_user > user_total) { %>
+                <% if (projectData.max_user === 0 || projectData.max_user > user_total) { %>
                 <a href="#ver" data-toggle="modal" data-target="#add-user" class="btn btn-primary btn-sm pull-right">添加账号</a>
                 <% } else { %>
                 <a href="#add-unpass" data-toggle="modal" data-target="#add-unpass" class="btn btn-primary btn-sm pull-right">添加账号（受限）</a>