fix: keep assistant menu selection visible

apps/nextjs/src/components/assistant/assistant-trigger-scroll.ts

@@ -0,0 +1,17 @@
+export const getNearestTriggerScrollTop = ({
+  scrollTop,
+  viewportTop,
+  viewportBottom,
+  itemTop,
+  itemBottom,
+}: {
+  scrollTop: number;
+  viewportTop: number;
+  viewportBottom: number;
+  itemTop: number;
+  itemBottom: number;
+}) => {
+  if (itemTop < viewportTop) return Math.max(0, scrollTop - (viewportTop - itemTop));
+  if (itemBottom > viewportBottom) return scrollTop + (itemBottom - viewportBottom);
+  return scrollTop;
+};