restore scroll position

src/routes/Vote.svelte

@@ -69,6 +69,7 @@
     }
 
     async function loadScenes() {
+        const scrollPosition = window.scrollY;
         const success = await fetchScenes();
         if (!success) return;
 
@@ -97,6 +98,7 @@
 
         overlayA.style.display = "none";
         overlayB.style.display = "none";
+        window.scrollTo(0, scrollPosition);
     }
 
     async function vote(option: "A" | "B") {