chore: update logo and favicon from waiguoyan assets

frontend/src/layouts/UserLayout.vue

@@ -3,7 +3,7 @@
     <aside v-if="!hideSidebar" class="sidebar" :class="{ collapsed: sidebarCollapsed, 'mobile-open': mobileMenuOpen }">
       <div class="sidebar-header">
         <div class="logo" @click="$router.push('/')">
-          <img src="/logo.png" alt="Logo" class="logo-icon" />
+          <img :src="logoImg" alt="Logo" class="logo-icon" />
           <span class="logo-text">Sale</span>
         </div>
       </div>
@@ -112,6 +112,7 @@
 import { ref, computed, watch } from 'vue'
 import { useRouter, useRoute } from 'vue-router'
 import { useI18n } from 'vue-i18n'
+import logoImg from '../assets/logo.png'
 import { HomeFilled, Goods, Document, Trophy, ShoppingCart, Compass, User, Fold, Expand, Search } from '@element-plus/icons-vue'
 import { useUserStore } from '../store/user'
 import { useCartStore } from '../store/cart'