feat: 添加网站图标并更新相关配置

添加favicon.ico文件并在所有页面中引用
更新config.php中的数据库和SMTP配置
将favicon.jpeg替换为favicon.ico
优化部分页面的字体引用方式

index.php

@@ -32,7 +32,8 @@ if (!isset($conn) || !$conn instanceof mysqli) {
     <!-- 自定义CSS -->
     <link rel="stylesheet" href="styles.css">
     <!-- Font Awesome -->
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <link rel="stylesheet" href="/css/all.min.css">
+    <link rel="icon" href="/favicon.ico">
     <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
     <!-- Fluent Design 模糊效果 -->
     <style>
@@ -46,7 +47,7 @@ if (!isset($conn) || !$conn instanceof mysqli) {
     <!-- 导航栏 -->
     <nav class="navbar navbar-expand-lg navbar-light blur-bg">
         <div class="container">
-            <a href="index.php"><img src="/favicon.jpeg" alt="Logo" style="height: 30px; margin-right: 10px; border-radius: var(--border-radius);"></a>
+            <a href="index.php"><img src="/favicon.ico" alt="Logo" style="height: 30px; margin-right: 10px; border-radius: var(--border-radius);"></a>
             <a class="navbar-brand" href="#"><?php echo APP_STORE_NAME; ?></a>
             <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
                 <span class="navbar-toggler-icon"></span>