improve scrolling perf

routes/_components/Status.html

@@ -61,6 +61,7 @@
         ".............. status-toolbar";
     grid-template-columns: 58px 1fr;
     border-bottom: 1px solid var(--main-border);
+    will-change: transform; /* TODO: is this necessary? */
   }
 
   :global(.status-sidebar) {

routes/_components/VirtualList.html

@@ -39,10 +39,7 @@
         this.store.set({
           scrollTop: e.target.scrollTop
         })
-      }, DEBOUNCE_TIME, {
-        leading: true,
-        trailing: true
-      }))
+      }, DEBOUNCE_TIME))
     },
     ondestroy () {
     },