fix: 优化移动端页面体验

- repos 页面：标题和按钮移动端换行显示，响应式布局优化
- config 页面：移动端无边框，全屏宽度，按钮垂直堆叠
- gitea config 页面：同 config 页面优化
- BuildConfig、RepoCard、Dialog 等组件响应式优化

src/pages/config/page.tsx

@@ -1,5 +1,4 @@
 import { useConfigStore } from './store';
-import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { Button } from '@/components/ui/button';
@@ -19,15 +18,15 @@ export const ConfigPage = () => {
 
   return (
     <TooltipProvider>
-      <div className="container mx-auto max-w-2xl py-8">
-        <Card>
-          <CardHeader>
-            <CardTitle>CNB 配置</CardTitle>
-            <CardDescription>
+      <div className="container mx-auto max-w-2xl py-4 md:py-8 px-4">
+        <div className="bg-white md:rounded-lg md:border md:shadow-sm">
+          <div className="p-4 md:p-6 border-b">
+            <h1 className="text-xl md:text-2xl font-bold">CNB 配置</h1>
+            <p className="text-sm text-muted-foreground mt-1">
               配置您的 CNB API 设置。这些设置会保存在浏览器的本地存储中。
-            </CardDescription>
-          </CardHeader>
-          <CardContent>
+            </p>
+          </div>
+          <div className="p-4 md:p-6">
             <form onSubmit={handleSubmit} className="space-y-6">
               <div className="space-y-2">
                 <div className="flex items-center gap-2">
@@ -91,17 +90,17 @@ export const ConfigPage = () => {
                 />
               </div>
 
-              <div className="flex gap-4">
-                <Button type="button" variant="outline" onClick={loadFromRemote}>
+              <div className="flex flex-col sm:flex-row gap-2 sm:gap-4">
+                <Button type="button" variant="outline" onClick={loadFromRemote} className="w-full sm:w-auto">
                   获取远端配置
                 </Button>
-                <Button type="button" variant="outline" onClick={saveToRemote}>
+                <Button type="button" variant="outline" onClick={saveToRemote} className="w-full sm:w-auto">
                   保存到远端
                 </Button>
               </div>
             </form>
-          </CardContent>
-        </Card>
+          </div>
+        </div>
       </div>
     </TooltipProvider>
   );