fix: Fix the validation message translations not occuring for Preview…

… of Forms (#5028)

* * fix the validation messages for preview of forms.

* * Shift namespaces to const, and move translatedT function up beside OG T.

app/(gcforms)/[locale]/(form administration)/form-builder/[id]/preview/Preview.tsx

@@ -77,7 +77,10 @@ export const Preview = ({
       email: s.deliveryOption?.emailAddress,
     }));
 
-  const { t } = useTranslation(["common", "form-builder", "form-closed"]);
+  const translationNamespaces = ["common", "form-builder", "form-closed"];
+  const { t } = useTranslation(translationNamespaces);
+  const translatedT = useTranslation(translationNamespaces, { lng: translationLanguagePriority }).t;
+
   const language = translationLanguagePriority;
   const currentForm = getRenderedForm(formRecord, language);
 
@@ -191,7 +194,7 @@ export const Preview = ({
                   saveProgress={saveProgress}
                   isPreview={true}
                   language={language}
-                  t={t}
+                  t={translatedT}
                   onSuccess={setSent}
                   renderSubmit={({ validateForm }) => {
                     return (