fix: fix the bug in the home page

frontend/src/assets/main.css

@@ -1,35 +1,11 @@
-@import './base.css';
-
-#app {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
-  font-weight: normal;
+/* hide browser scrollbar */
+body {
+  scrollbar-width: none;
+  -ms-overflow-style: none;
 }
 
-a,
-.green {
-  text-decoration: none;
-  color: hsla(160, 100%, 37%, 1);
-  transition: 0.4s;
-  padding: 3px;
-}
-
-@media (hover: hover) {
-  a:hover {
-    background-color: hsla(160, 100%, 37%, 0.2);
-  }
-}
-
-@media (min-width: 1024px) {
-  body {
-    display: flex;
-    place-items: center;
-  }
-
-  #app {
-    display: grid;
-    grid-template-columns: 1fr 1fr;
-    padding: 0 2rem;
-  }
+/* 隐藏整个滚动条 */
+::-webkit-scrollbar {
+  width: 0;
+  height: 0;
 }

frontend/src/main.js

@@ -1,5 +1,6 @@
 import { createPinia } from 'pinia'
 import { createApp } from 'vue'
+import './assets/main.css'
 
 import App from './App.vue'
 import router from './router'

frontend/src/views/tabs/HomeView.vue

@@ -1,6 +1,8 @@
 <template>
   <van-search v-model="search" placeholder="请输入搜索关键词" />
 
+  <van-back-top bottom="80" />
+
   <van-list
     v-model:loading="loading"
     :finished="finished"