Fix scroll indicator clipping behind contact bar

Position indicator above contact bar overlap zone — 56px on desktop,
40px on mobile.

Author: sin4ch

index.html

@@ -490,7 +490,7 @@
     /* Scroll indicator arrow */
     .scroll-indicator {
       position: absolute;
-      bottom: 20px;
+      bottom: 56px;
       right: 12px;
       opacity: 0;
       visibility: hidden;
@@ -1067,7 +1067,7 @@
       }
 
       .scroll-indicator {
-        bottom: 12px;
+        bottom: 40px;
         right: 8px;
       }