Using scroll component for release banner, adding expand button.

assets/components/scroll/scroll.vue

@@ -78,7 +78,7 @@ function mounted() {
 	});
 
 	window.addEventListener('resize', this.updateScroll);
-	this.updateScroll();
+	setTimeout(() => this.updateScroll(), 500); // allow CSS to calculate
 }
 
 function beforeDestroy() {
@@ -135,6 +135,10 @@ export default {
 	}
 }
 
+.expand-light {
+	display: none;
+}
+
 .scroll-light {
 	background: var(--background-dim);
 
@@ -164,6 +168,10 @@ export default {
 	.expand-dark {
 		display: none;
 	}
+
+	.expand-light {
+		display: block;
+	}
 }
 
 .scroll-dark {
@@ -195,6 +203,10 @@ export default {
 	.expand-light {
 		display: none;
 	}
+
+	.expand-dark {
+		display: block;
+	}
 }
 
 .scroll-button {
@@ -205,6 +217,7 @@ export default {
 	position: absolute;
 	top: 0;
 	bottom: 0;
+	z-index: 10;
 
 	&.scroll-start,
 	&.scroll-end {