Merge pull request 'Made clear massages for errors in recipient registration' (#111) from SEND008 into main

Reviewed-on: #111

frontend/pweb/lib/pages/address_book/form/page.dart

@@ -101,8 +101,15 @@ class _AdressBookRecipientFormState extends State<AdressBookRecipientForm> {
 
   //TODO: Change when registration is ready
   Future<void> _save() async {
-    if (!_formKey.currentState!.validate() || _methods.isEmpty) {
-      notifyUser(context, AppLocalizations.of(context)!.errorSaveRecipient);
+    final l10n = AppLocalizations.of(context)!;
+
+    if (!_formKey.currentState!.validate()) {
+      notifyUser(context, l10n.recipientFormValidationError);
+      return;
+    }
+
+    if (_methods.isEmpty) {
+      notifyUser(context, l10n.recipientFormRule);
       return;
     }
 
@@ -114,8 +121,8 @@ class _AdressBookRecipientFormState extends State<AdressBookRecipientForm> {
     final recipient = await executeActionWithNotification(
       context: context, 
       action: _doSave, 
-      errorMessage: AppLocalizations.of(context)!.errorSaveRecipient,
-      successMessage: AppLocalizations.of(context)!.recipientFormRule,
+      errorMessage: l10n.errorSaveRecipient,
+      successMessage: l10n.recipientSavedSuccessfully,
     );