style(components): 统一按钮样式为 primary 和 warning 类型

将上传和请求组件中的按钮样式统一为 type="primary"，并将重置按钮改为 type="warning" 以保持一致性

src/pages/about/components/request.vue

@@ -61,7 +61,7 @@ function reset() {
     <!-- #endif -->
 
     <!-- http://localhost:9000/#/pages/index/request -->
-    <up-button class="my-6" @click="run">
+    <up-button class="my-6" type="primary" @click="run">
       发送请求
     </up-button>
     <view class="h-16">
@@ -77,7 +77,7 @@ function reset() {
         </view>
       </block>
     </view>
-    <up-button theme="danger" class="my-6" :disabled="!data" @click="reset">
+    <up-button type="warning" class="my-6" :disabled="!data" @click="reset">
       重置数据
     </up-button>
   </view>

src/pages/about/components/upload.vue

@@ -13,7 +13,7 @@ const { loading, data, run } = useUpload()
 
 <template>
   <view class="p-4 text-center">
-    <up-button @click="run">
+    <up-button type="primary" @click="run">
       选择图片并上传
     </up-button>
     <view v-if="loading" class="h-10 text-blue">