fix: keep mobile filters compact and visible

frontend/app.js

@@ -154,8 +154,6 @@ createApp({
         status: 'all', // all/active/expiring/expired/protected/public
         sort: 'created_desc' // created_desc/created_asc/views_desc/downloads_desc/expire_asc
       },
-      showMobileShareFilters: false,
-
       // 文件重命名
       showRenameModal: false,
       renameForm: {
@@ -217,7 +215,6 @@ createApp({
         storage: 'all', // all/local/oss/local_only/oss_only/user_choice
         sort: 'created_desc' // created_desc/created_asc/username_asc/username_desc/storage_usage_desc/download_usage_desc
       },
-      showMobileAdminUserFilters: false,
       showResetPwdModal: false,
       resetPwdUser: {},
       newPassword: '',
@@ -644,14 +641,6 @@ createApp({
     },
 
     // 分享筛选+排序后的列表
-    activeShareFilterCount() {
-      return [
-        this.shareFilters.type !== 'all',
-        this.shareFilters.status !== 'all',
-        this.shareFilters.sort !== 'created_desc'
-      ].filter(Boolean).length;
-    },
-
     filteredShares() {
       let list = [...this.shares];
       const keyword = this.shareFilters.keyword.trim().toLowerCase();