feat: Integrate IdleMainPagesSlideshow component into App.js and update links in MainPageLayout for improved navigation to articles

src/App.js

@@ -33,6 +33,7 @@ import i18n from './i18n/index.js';
 import Header from "./components/Header.js";
 import Footer from "./components/Footer.js";
 import MainPageLayout from "./components/MainPageLayout.js";
+import IdleMainPagesSlideshow from "./components/IdleMainPagesSlideshow.js";
 
 import Content from "./components/Content.js";
 import ProductDetail from "./components/ProductDetail.js";
@@ -253,6 +254,7 @@ const AppContent = ({ currentTheme, dynamicTheme, onThemeChange }) => {
           )
         }>
           <CarouselProvider>
+            <IdleMainPagesSlideshow />
             <Routes>
               {/* Main pages using unified component */}
               <Route path="/" element={<MainPageLayout />} />

src/components/IdleMainPagesSlideshow.js

@@ -0,0 +1,104 @@
+import { useEffect, useRef, useCallback } from "react";
+import { useLocation, useNavigate } from "react-router-dom";
+
+/** Same order as the main landing tiles (home → Aktionen → Filiale). */
+const MAIN_PAGE_PATHS = ["/", "/aktionen", "/filiale"];
+
+/** No input for this long before the slideshow starts. */
+const IDLE_MS = 90_000;
+
+/** Time between automatic page changes once the slideshow is running. */
+const SLIDESHOW_STEP_MS = 14_000;
+
+/** Ignore duplicate events (mousemove etc.) within this window. */
+const ACTIVITY_THROTTLE_MS = 400;
+
+/**
+ * After idle on /, /aktionen, or /filiale, cycles those routes slowly.
+ * Lives outside MainPageLayout so it is not reset when the route changes.
+ */
+export default function IdleMainPagesSlideshow() {
+  const location = useLocation();
+  const navigate = useNavigate();
+  const idleTimerRef = useRef(null);
+  const slideTimerRef = useRef(null);
+  const pathRef = useRef(location.pathname);
+  const wasOnMainPageRef = useRef(false);
+  const lastActivityRef = useRef(0);
+
+  pathRef.current = location.pathname;
+
+  const clearTimers = useCallback(() => {
+    if (idleTimerRef.current != null) {
+      clearTimeout(idleTimerRef.current);
+      idleTimerRef.current = null;
+    }
+    if (slideTimerRef.current != null) {
+      clearInterval(slideTimerRef.current);
+      slideTimerRef.current = null;
+    }
+  }, []);
+
+  const startSlideshow = useCallback(() => {
+    let idx = MAIN_PAGE_PATHS.indexOf(pathRef.current);
+    if (idx < 0) idx = 0;
+    const advance = () => {
+      idx = (idx + 1) % MAIN_PAGE_PATHS.length;
+      navigate(MAIN_PAGE_PATHS[idx], { replace: true });
+    };
+    slideTimerRef.current = setInterval(advance, SLIDESHOW_STEP_MS);
+  }, [navigate]);
+
+  const resetIdle = useCallback(() => {
+    clearTimers();
+    if (!MAIN_PAGE_PATHS.includes(pathRef.current)) return;
+    idleTimerRef.current = setTimeout(() => {
+      idleTimerRef.current = null;
+      startSlideshow();
+    }, IDLE_MS);
+  }, [clearTimers, startSlideshow]);
+
+  useEffect(() => {
+    const nowMain = MAIN_PAGE_PATHS.includes(location.pathname);
+    if (!nowMain) {
+      clearTimers();
+      wasOnMainPageRef.current = false;
+      return;
+    }
+    if (!wasOnMainPageRef.current) {
+      resetIdle();
+    }
+    wasOnMainPageRef.current = true;
+  }, [location.pathname, clearTimers, resetIdle]);
+
+  useEffect(() => {
+    const onActivity = () => {
+      const t = Date.now();
+      if (t - lastActivityRef.current < ACTIVITY_THROTTLE_MS) return;
+      lastActivityRef.current = t;
+      resetIdle();
+    };
+
+    const events = [
+      "mousedown",
+      "keydown",
+      "touchstart",
+      "touchmove",
+      "wheel",
+      "click",
+      "scroll",
+    ];
+    events.forEach((ev) =>
+      window.addEventListener(ev, onActivity, { passive: true })
+    );
+    window.addEventListener("mousemove", onActivity, { passive: true });
+
+    return () => {
+      events.forEach((ev) => window.removeEventListener(ev, onActivity));
+      window.removeEventListener("mousemove", onActivity);
+      clearTimers();
+    };
+  }, [resetIdle, clearTimers]);
+
+  return null;
+}

src/components/MainPageLayout.js

@@ -320,8 +320,8 @@ const MainPageLayout = () => {
       { title: t('sections.konfigurator'), image: "/assets/images/konfigurator.avif", bgcolor: "#e8f5d6", link: "/Konfigurator" }
     ],
     aktionen: [
-      { title: t('sections.oilPress'), image: "/assets/images/presse.jpg", bgcolor: "#e1f0d3", link: "/presseverleih" },
+      { title: t('sections.oilPress'), image: "/assets/images/presse.jpg", bgcolor: "#e1f0d3", link: "/Artikel/Graveda-10t-presse-tagesmiete-inkl-prepress-vorpressform" },
-      { title: t('sections.thcTest'), image: "/assets/images/purpl.jpg", bgcolor: "#e8f5d6", link: "/thc-test" }
+      { title: t('sections.thcTest'), image: "/assets/images/purpl.jpg", bgcolor: "#e8f5d6", link: "/Artikel/1x-messung-purplpro-thc-cbd-restfeuchte-wasseraktivitaet" }
     ],
     filiale: [
       { title: t('sections.address1'), image: "/assets/images/filiale1.jpg", bgcolor: "#e1f0d3", link: "/filiale" },