fix(蓝牙配对): 优化BLE连接超时提示和超时时间

将BLE连接超时时间从30秒缩短至20秒
更新中英文超时提示，建议用户重启耳机后重试

lib/core/translations/language/en_us.dart

@@ -805,7 +805,8 @@ const Map<String, String> enUS = {
   'invalidDeviceAddress': 'Invalid device address',
   'bleDeviceAssociationFailed': 'BLE device association failed',
   'deviceAssociationFailedRetry': 'Device association failed, please retry',
-  'bleConnectionTimeoutRetry': 'BLE connection timeout, please retry',
+  'bleConnectionTimeoutRetry':
+      'BLE connection timeout. Please restart the earphone and try again',
   'blePairingStartupFailed': 'BLE pairing startup failed',
   'bleConnectionFailed': 'BLE connection failed',
   'deviceAuthorizationFailedCheckCode':

lib/core/translations/language/zh_cn.dart

@@ -741,7 +741,7 @@ const Map<String, String> zhCN = {
   'invalidDeviceAddress': '设备地址无效',
   'bleDeviceAssociationFailed': 'BLE设备关联失败',
   'deviceAssociationFailedRetry': '设备关联失败，请重试',
-  'bleConnectionTimeoutRetry': 'BLE连接超时，请重试',
+  'bleConnectionTimeoutRetry': 'BLE连接超时，请重启耳机后再试',
   'blePairingStartupFailed': 'BLE配对启动失败',
   'bleConnectionFailed': 'BLE连接失败',
   'deviceAuthorizationFailedCheckCode': '设备授权失败,请检查授权码',

lib/modules/pairing/controllers/pairing_controller.dart

@@ -552,7 +552,7 @@ class PairingController extends GetxController {
     try {
       // 设置超时定时器
       _bleTimeoutTimer?.cancel();
-      _bleTimeoutTimer = Timer(const Duration(seconds: 30), () {
+      _bleTimeoutTimer = Timer(const Duration(seconds: 20), () {
         if (_currentState.value == PairingState.waitingBle) {
           _setError(ErrorType.bleTimeout,
               'bleConnectionTimeoutRetry'.tr); //BLE连接超时，请重试