fix: Typo styling issue

src/slic3r/GUI/Preferences.cpp

@@ -927,8 +927,8 @@ wxWindow* PreferencesDialog::create_general_page()
         wxLANGUAGE_DUTCH,
         wxLANGUAGE_HUNGARIAN,
         wxLANGUAGE_JAPANESE,
-        wxLANGUAGE_ITALIAN
-        wxLANGUAGE_UKRAINIAN,
+        wxLANGUAGE_ITALIAN,
+        wxLANGUAGE_UKRAINIAN
     };
 
     auto translations = wxTranslations::Get()->GetAvailableTranslations(SLIC3R_APP_KEY);