minor home screen fix

lib/screens/transactions/transaction_model.dart

@@ -34,9 +34,7 @@ class AdditionalDataJsonConverter
 
   @override
   List<Map<String, dynamic>>? fromJson(List<dynamic>? json) {
-    return json
-        ?.map((e) => Map<String, dynamic>.from(e as Map))
-        .toList();
+    return json?.map((e) => Map<String, dynamic>.from(e as Map)).toList();
   }
 
   @override
@@ -61,7 +59,7 @@ class TransactionModel {
   final Decimal totalAmount;
   final String reference;
   final String paymentProcessorLabel;
-  final String integrationProcessorLabel;
+  final String? integrationProcessorLabel;
   final String confirmationProcessorLabel;
   final String providerLabel;
   final String debitPhone;
@@ -109,7 +107,7 @@ class TransactionModel {
     required this.totalAmount,
     required this.reference,
     required this.paymentProcessorLabel,
-    required this.integrationProcessorLabel,
+    this.integrationProcessorLabel,
     required this.confirmationProcessorLabel,
     required this.providerLabel,
     required this.debitPhone,
@@ -150,4 +148,4 @@ class TransactionModel {
       _$TransactionModelFromJson(json);
 
   Map<String, dynamic> toJson() => _$TransactionModelToJson(this);
-}
+}