show curtain in devices and implement dialog for if and then (#263)

last integrate with backend

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## Jira Ticket
[SP-1728](https://syncrow.atlassian.net/browse/SP-1728)

## Description

implement the dialog for CURTAIN and make it appears with devices in
making Routine
integrate it with backend and test it 
## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [x] ✨ New feature (non-breaking change which adds functionality)
- [ ] 🛠️ Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 Code refactor
- [ ] ✅ Build configuration change
- [ ] 📝 Documentation
- [ ] 🗑️ Chore 


[SP-1728]:
https://syncrow.atlassian.net/browse/SP-1728?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

lib/pages/routines/helper/dialog_helper/device_dialog_helper.dart

@@ -4,6 +4,7 @@ import 'package:syncrow_web/pages/routines/bloc/routine_bloc/routine_bloc.dart';
 import 'package:syncrow_web/pages/routines/models/device_functions.dart';
 import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/ac_dialog.dart';
 import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/ceiling_sensor/ceiling_sensor_helper.dart';
+import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/curtain_dialog.dart';
 import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/flush_presence_sensor/flush_presence_sensor.dart';
 import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/gateway/gateway_helper.dart';
 import 'package:syncrow_web/pages/routines/widgets/routine_dialogs/one_gang_switch_dialog.dart';
@@ -26,7 +27,7 @@ class DeviceDialogHelper {
       final result = await _getDialogForDeviceType(
         dialogType: dialogType,
         context: context,
-        productType: data['productType'],
+        productType: data['productType'] as String,
         data: data,
         functions: functions,
         removeComparetors: removeComparetors,
@@ -65,7 +66,14 @@ class DeviceDialogHelper {
           removeComparetors: removeComparetors,
           dialogType: dialogType,
         );
-
+      case 'CUR':
+        return CurtainHelper.showControlDialog(
+          dialogType: dialogType,
+          context: context,
+          functions: functions,
+          uniqueCustomId: data['uniqueCustomId'],
+          device: data['device'],
+        );
       case '1G':
         return OneGangSwitchHelper.showSwitchFunctionsDialog(
             dialogType: dialogType,