feat: add Polish and English language switcher

components/ui/install-pwa-button.tsx

@@ -3,6 +3,7 @@
 import { useEffect, useState } from "react";
 import { Download } from "lucide-react";
 import { Button } from "@/components/ui/button";
+import { useI18n } from "@/lib/i18n";
 
 interface BeforeInstallPromptEvent extends Event {
   prompt: () => Promise<void>;
@@ -11,6 +12,7 @@ interface BeforeInstallPromptEvent extends Event {
 
 export function InstallPWAButton() {
   const [event, setEvent] = useState<BeforeInstallPromptEvent | null>(null);
+  const { t } = useI18n();
   useEffect(() => {
     const handlePrompt = (promptEvent: Event) => {
       promptEvent.preventDefault();
@@ -31,7 +33,7 @@ export function InstallPWAButton() {
       }}
     >
       <Download className="size-4" />
-      Zainstaluj
+      {t("pwa.install")}
     </Button>
   );
 }