fix: delay scroll handler binding to skip queued scroll event

scrollTop assignment triggers an async scroll event. When all tasks
fit in the viewport, handleScrollFocus recalculates center-aligned
task and picks the last one instead of the saved one. Using setTimeout(0)
defers handler binding to after the queued event fires.

static/js/tasks.js

@@ -170,8 +170,12 @@ function initScrollFocus() {
 
     scrollView.removeEventListener("scroll", handleScrollFocus);
     scrollView.removeEventListener("scroll", handleScrollSave);
+
+    // Delay binding to skip the async scroll event queued by scrollToTask
+    setTimeout(() => {
         scrollView.addEventListener("scroll", handleScrollFocus);
         scrollView.addEventListener("scroll", handleScrollSave);
+    }, 0);
 }
 
 function handleScrollFocus() {