feat: 添加LeonAPP下载链接并更新配置信息

- 在导航栏添加手机版和电脑版LeonAPP下载链接
- 更新数据库、SMTP和管理员的密码配置
- 在应用详情页面添加图标以增强视觉效果

app.php

@@ -194,9 +194,9 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['rating'])) {
     <div class="container mt-4">
         <div class="row">
             <div class="col-md-6">
-                <h1><?php echo $app['name']; ?></h1>
-                <p class="lead"><?php echo $app['description']; ?></p>
-                <p>年龄分级: <?php echo $app['age_rating']; ?></p>
+                <h1><i class="fas fa-box-open"></i> <?php echo $app['name']; ?></h1>
+                <p class="lead"><i class="fas fa-info-circle"></i> <?php echo $app['description']; ?></p>
+                <p>年龄分级: <i class="fas fa-user-check"></i> <?php echo $app['age_rating']; ?></p>
                 <?php if (!empty($app['age_rating_description'])): ?>
                 <div class="age-rating-description">
                     <h4>年龄分级说明</h4>

index.php

@@ -76,6 +76,12 @@ if (!isset($conn) || !$conn instanceof mysqli) {
                         <a class="nav-link" href="developer/login.php">开发者登录</a>
                     </li>
                     <?php endif; ?>
+                    <li class="nav-item">
+                        <a class="nav-link" href="http://leonmmcoset.jjmm.ink:3232/app.php?id=36">下载LeonAPP手机版</a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="http://leonmmcoset.jjmm.ink:3232/app.php?id=41">下载LeonAPP电脑版</a>
+                    </li>
                     <li class="nav-item">
                         <a class="nav-link" href="thanks.php">鸣谢</a>
                     </li>