bug fixes

src/modules/school/course/components/DialogVideoPlayer.vue

 <template>
-  <el-dialog v-bind="$attrs" v-on="$listeners" width="800px" top="20vh">
+  <el-dialog :append-to-body="true" v-bind="$attrs" v-on="$listeners" width="800px" top="20vh">
     <app-video-player :options="options" v-on="$listeners"></app-video-player>
   </el-dialog>
 </template>
 <script>
 import AppVideoPlayer from '@/components/base/AppVideoPlayer.vue'
 export default {
+  inheritAttrs: false,
   props: {
     options: {
       type: Object,