feat: ✨ Add bottom sidebar on mobile

components/timelines/TimelineScroller.vue

@@ -0,0 +1,23 @@
+<template>
+    <slot />
+</template>
+
+<script lang="ts" setup>
+const root = useParentElement();
+// Store and keep y to restore it on page change
+const route = useRoute();
+const yStored = useLocalStorage(`lysand:scroll-${route.fullPath}`, 0);
+const { y } = useScroll(root);
+
+useEventListener("popstate", async (event) => {
+    if (yStored.value !== null) {
+        // Wait for the Vue component to load
+        await new Promise((resolve) => setTimeout(resolve, 100));
+        y.value = yStored.value;
+    }
+});
+
+onBeforeRouteLeave(() => {
+    yStored.value = y.value;
+});
+</script>