fix: 更新BLE超时提示和调整视图高度

修改BLE连接超时提示信息，建议用户重启耳机后重试
调整agent视图容器高度从50.h改为52.h

lib/modules/agent/views/agent_view.dart

@@ -530,7 +530,7 @@ class _AgentViewState extends State<AgentView> with WidgetsBindingObserver {
                                             controller.isListening.value;
 
                                         return Container(
-                                          height: 50.h,
+                                          height: 52.h,
                                           padding: EdgeInsets.symmetric(
                                               horizontal: 16.w),
                                           decoration: BoxDecoration(

lib/modules/pairing/controllers/pairing_controller.dart

@@ -555,7 +555,7 @@ class PairingController extends GetxController {
       _bleTimeoutTimer = Timer(const Duration(seconds: 20), () {
         if (_currentState.value == PairingState.waitingBle) {
           _setError(ErrorType.bleTimeout,
-              'bleConnectionTimeoutRetry'.tr); //BLE连接超时，请重试
+              'bleConnectionTimeoutRetry'.tr); //BLE连接超时，请重启耳机后再试
         }
       });