add new marking-content layout

src/app/lib/pluralize.ts

@@ -1,5 +1,13 @@
+'use client'
+
 export const pluralize = (number: number, one: string, few: string, many: string) => {
-	const currentLang = document.documentElement.getAttribute('lang') || 'ru';
+	const getCurrentLang = () => {
+		if (typeof window !== 'undefined') {
+			return document?.documentElement?.getAttribute('lang') || 'ru';
+		}
+		return 'ru'; // значение по умолчанию для сервера
+	}
+	const currentLang = getCurrentLang();
 
 	if (currentLang === 'ru') {
 		const n = Math.abs(number) % 100;