feat(notifications): enhance NotificationsHub with device status updates and logout notifications

webapp/src/lib/i18n.ts

@@ -346,6 +346,8 @@ const messages: Record<Locale, Record<string, string>> = {
     txt_ssn: "SSN",
     txt_state_province: "State / Province",
     txt_status: "Status",
+    txt_online: "Online",
+    txt_offline: "Offline",
     txt_submit: "Submit",
     txt_sync: "Sync",
     txt_sync_vault: "Sync Vault",
@@ -624,6 +626,8 @@ const zhCNOverrides: Record<string, string> = {
   txt_manage_device_sessions_and_30_day_totp_trusted_sessions: '管理设备会话和 30 天 TOTP 受信状态。',
   txt_role: '角色',
   txt_status: '状态',
+  txt_online: '在线',
+  txt_offline: '离线',
   txt_actions: '操作',
   txt_type: '类型',
   txt_revoke_all_trusted: '撤销全部受信任设备',