Translated 404 page

lang/en/app/404.php

@@ -0,0 +1,7 @@
+<?php
+
+return [
+    'title' => 'Error 404',
+    'header' => 'The page was not found',
+    'message' => 'This link is incorrect. Are you sure you properly entered the link?',
+];

lang/ro/app/404.php

@@ -0,0 +1,7 @@
+<?php
+
+return [
+    'title' => 'Eroare 404',
+    'header' => 'Pagina nu a fost găsită',
+    'message' => 'Link-ul nu este corect. Ești sigur că ai scris corect link-ul?',
+];