fix: 更新默认头像链接为全家福图片

@@ -193,7 +193,7 @@ import { searchFamilyByPassphraseAPI, joinFamilyAPI } from '@/api/family';
 // 导入主题颜色
 import { THEME_COLORS } from '@/utils/config';
 // 默认头像
-const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
+const defaultAvatar = 'https://cdn.ipadbiz.cn/lls_prog/images/%E5%85%A8%E5%AE%B6%E7%A6%8F3_%E5%89%AF%E6%9C%AC.jpg?imageMogr2/strip/quality/60'
 
 const mottoChars = ref(['', '', '', '']);
 const selectedRole = ref('');