Improve number sorting

lib/data/models/client_model.dart

@@ -14,6 +14,7 @@ import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/redux/static/static_state.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
+import 'package:collection/collection.dart';
 
 part 'client_model.g.dart';
 
@@ -396,7 +397,8 @@ abstract class ClientEntity extends Object
         response = clientA.idNumber.compareTo(clientB.idNumber);
         break;
       case ClientFields.number:
-        response = clientA.number.compareTo(clientB.number);
+        response = compareNatural(
+            clientA.number.toLowerCase(), clientB.number.toLowerCase());
         break;
       case ClientFields.website:
         response = clientA.website

lib/data/models/expense_model.dart

@@ -9,6 +9,7 @@ import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/redux/static/static_state.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
+import 'package:collection/collection.dart';
 
 part 'expense_model.g.dart';
 
@@ -449,7 +450,8 @@ abstract class ExpenseEntity extends Object
             expenseA.documents.length.compareTo(expenseB.documents.length);
         break;
       case ExpenseFields.number:
-        response = expenseA.number.compareTo(expenseB.number);
+        response = compareNatural(
+            expenseA.number.toLowerCase(), expenseB.number.toLowerCase());
         break;
       case ExpenseFields.privateNotes:
         response = expenseA.privateNotes.compareTo(expenseB.privateNotes);

lib/data/models/invoice_model.dart

@@ -12,6 +12,7 @@ import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/money.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
+import 'package:collection/collection.dart';
 
 part 'invoice_model.g.dart';
 
@@ -556,9 +557,8 @@ abstract class InvoiceEntity extends Object
                 invoiceBNumber.startsWith(recurringPrefix)
             ? invoiceBNumber.replaceFirst(recurringPrefix, '')
             : invoiceBNumber;
-        response = invoiceANumber
-            .toLowerCase()
-            .compareTo(invoiceBNumber.toLowerCase());
+        response = compareNatural(
+            invoiceANumber.toLowerCase(), invoiceBNumber.toLowerCase());
         break;
       case InvoiceFields.amount:
         response = invoiceA.amount.compareTo(invoiceB.amount);

lib/data/models/task_model.dart

@@ -11,6 +11,7 @@ import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/redux/task_status/task_status_selectors.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
+import 'package:collection/collection.dart';
 
 part 'task_model.g.dart';
 
@@ -665,7 +666,8 @@ abstract class TaskEntity extends Object
         response = taskA.documents.length.compareTo(taskB.documents.length);
         break;
       case TaskFields.number:
-        response = taskA.number.compareTo(taskB.number);
+        response = compareNatural(
+            taskA.number.toLowerCase(), taskB.number.toLowerCase());
         break;
       case TaskFields.status:
         final taskAStatus = taskA.isRunning

lib/data/models/vendor_model.dart

@@ -7,6 +7,7 @@ import 'package:invoiceninja_flutter/redux/app/app_state.dart';
 import 'package:invoiceninja_flutter/redux/static/static_state.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
 import 'package:invoiceninja_flutter/utils/strings.dart';
+import 'package:collection/collection.dart';
 
 part 'vendor_model.g.dart';
 
@@ -264,7 +265,8 @@ abstract class VendorEntity extends Object
         response = vendorA.documents.length.compareTo(vendorB.documents.length);
         break;
       case VendorFields.number:
-        response = vendorA.number.compareTo(vendorB.number);
+        response = compareNatural(
+            vendorA.number.toLowerCase(), vendorB.number.toLowerCase());
         break;
       case VendorFields.address1:
         response = vendorA.address1.compareTo(vendorB.address1);

lib/ui/client/edit/client_edit_details.dart

@@ -170,6 +170,7 @@ class ClientEditDetailsState extends State<ClientEditDetails> {
           DecoratedFormField(
             label: localization.number,
             controller: _numberController,
+            onSavePressed: viewModel.onSavePressed,
           ),
         if (memoizedGroupList(state.groupState.map).isNotEmpty)
           DynamicSelector(