TF-1194 edit default identity: update presentation layer

lib/features/identity_creator/presentation/identity_creator_controller.dart

@@ -252,12 +252,20 @@ class IdentityCreatorController extends BaseController {
         .getSmallestOrderedIdentity(identities)
         ?.map((identity) => identity.id!);
     
-    // if all identities have same sortOrder, it means it don't have default identity 
-    if (listDefaultIdentityIds?.length == identities?.length) {
-      isDefaultIdentity.value = false;
+    if (haveDefaultIdentities(identities, listDefaultIdentityIds) && 
+      listDefaultIdentityIds?.contains(identity?.id) == true
+    ) {
+      isDefaultIdentity.value = true;
     } else {
-      isDefaultIdentity.value = listDefaultIdentityIds?.contains(identity?.id) ?? false;
-    } 
+      isDefaultIdentity.value = false;
+    }
+  }
+
+  bool haveDefaultIdentities(
+    Iterable<Identity>? allIdentities, 
+    Iterable<IdentityId>? defaultIdentityIds
+  ) {
+    return defaultIdentityIds?.length != allIdentities?.length;
   }
 
   void selectSignatureType(BuildContext context, SignatureType newSignatureType) async {

lib/features/identity_creator/presentation/identity_creator_view.dart

@@ -205,10 +205,12 @@ class IdentityCreatorView extends GetWidget<IdentityCreatorController> {
             Column(children: [
               Padding(
                   padding: const EdgeInsets.only(top: 14),
-                  child: Text(controller.actionType.value == IdentityActionType.create
+                  child: Obx(() {
+                    return Text(controller.actionType.value == IdentityActionType.create
                         ? AppLocalizations.of(context).createNewIdentity.inCaps
                         : AppLocalizations.of(context).edit_identity.inCaps,
-                      style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 20, color: Colors.black))),
+                      style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 20, color: Colors.black));
+                  })),
               const SizedBox(height: 8),
               Expanded(
                 child: KeyboardRichText(