fix: replace ?? to || for fix avatar

apps/web-antd/src/layouts/basic.vue

@@ -94,7 +94,7 @@ const menus = computed(() => {
 });
 
 const avatar = computed(() => {
-  return userStore.userInfo?.avatar ?? preferences.app.defaultAvatar;
+  return userStore.userInfo?.avatar || preferences.app.defaultAvatar;
 });
 
 async function handleLogout() {

apps/web-antd/src/views/_core/profile/profile-panel.vue

@@ -24,7 +24,7 @@ defineEmits<{
 }>();
 
 const avatar = computed(
-  () => props.profile?.user.avatar ?? preferences.app.defaultAvatar,
+  () => props.profile?.user.avatar || preferences.app.defaultAvatar,
 );
 
 const { isDark } = usePreferences();