feat(上传视频): 添加提交按钮并优化布局

在视频上传页面添加了提交按钮，用于提交上传的视频信息。同时调整了按钮容器的布局，使其更加美观和实用。此外，优化了视频预览区域的样式，提升了用户体验。

@@ -28,6 +28,7 @@ declare module 'vue' {
     VanButton: typeof import('vant/es')['Button']
     VanCellGroup: typeof import('vant/es')['CellGroup']
     VanCheckbox: typeof import('vant/es')['Checkbox']
+    VanCol: typeof import('vant/es')['Col']
     VanDatePicker: typeof import('vant/es')['DatePicker']
     VanField: typeof import('vant/es')['Field']
     VanForm: typeof import('vant/es')['Form']
@@ -39,6 +40,7 @@ declare module 'vue' {
     VanPopup: typeof import('vant/es')['Popup']
     VanProgress: typeof import('vant/es')['Progress']
     VanRate: typeof import('vant/es')['Rate']
+    VanRow: typeof import('vant/es')['Row']
     VanTab: typeof import('vant/es')['Tab']
     VanTabs: typeof import('vant/es')['Tabs']
     VanToast: typeof import('vant/es')['Toast']

 <template>
   <div class="upload-video-container">
-    <van-button icon="plus" type="primary" @click="showUploadPopup = true">上传视频</van-button>
-
+    <div class="button-container">
+      <van-button type="primary" @click="showUploadPopup = true">上传视频</van-button>
+      <van-button type="default" @click="onSubmit">提交上传</van-button>
+    </div>
     <div class="video-list">
       <div v-for="video in videos" :key="video.id" class="video-preview">
         <VideoPlayer :video-url="video.url" :autoplay="false" />
@@ -40,6 +42,11 @@ const deleteVideo = (id) => {
     videos.value = newVideos;
   }
 };
+
+const onSubmit = () => {
+  // 提交上传的视频信息
+  console.log('提交上传的视频信息:', videos.value);
+};
 </script>
 
 <style scoped>
@@ -47,6 +54,13 @@ const deleteVideo = (id) => {
   padding: 16px;
 }
 
+.button-container {
+  display: flex;
+  justify-content: space-between;
+  width: 100%;
+  margin-bottom: 16px;
+}
+
 .video-list {
   margin-top: 16px;
   display: grid;
@@ -57,6 +71,21 @@ const deleteVideo = (id) => {
 .video-preview {
   position: relative;
   width: 100%;
+  min-height: 300px;
+  display: flex;
+  flex-direction: column;
+}
+
+.video-info {
+  padding: 8px;
+  background-color: #fff;
+}
+
+.video-name {
+  display: block;
+  margin-bottom: 8px;
+  font-size: 14px;
+  color: #333;
 }
 
 .delete-btn {