fix: update form and validation data on sync

When `initialValue` is set in the annotations, the value is passed to the
controller but is not added to the `formValueMap`. With this behavior cannot
be submitted or validated properly. To avoid this situation we update
the form data when view is synced with viewmodel.

In addition, if `autoTextFieldValidation` is true, we also update the
validation data.

lib/src/generators/forms/form_builder.dart

@@ -233,6 +233,11 @@ class FormBuilder with StringBufferUtils {
         '${_getControllerName(field)}.addListener(() => _updateFormData(model));',
       );
     }
+
+    newLine();
+    writeLine(
+      "_updateFormData(model, forceValidate: _autoTextFieldValidation);",
+    );
     writeLine('}');
     newLine();
 
@@ -251,6 +256,11 @@ class FormBuilder with StringBufferUtils {
         '${_getControllerName(field)}.addListener(() => _updateFormData(model));',
       );
     }
+
+    newLine();
+    writeLine(
+      "_updateFormData(model, forceValidate: _autoTextFieldValidation);",
+    );
     writeLine('}');
     newLine();
     return this;