chore(VInfiniteScroll): add comment about nested raf

Author: KaelWD

packages/vuetify/src/components/VInfiniteScroll/VInfiniteScroll.tsx

@@ -198,6 +198,9 @@ export const VInfiniteScroll = genericComponent<VInfiniteScrollSlots>()({
           }
           if (props.mode !== 'manual') {
             nextTick(() => {
+              // Browser takes 2 - 3 animation frames to trigger IntersectionObserver after
+              // VInfiniteScrollIntersect leaves the viewpoint. So far I couldn't come up
+              // with a better solution than using 3 nested window.requestAnimationFrame. (#17475)
               window.requestAnimationFrame(() => {
                 window.requestAnimationFrame(() => {
                   window.requestAnimationFrame(() => {
@@ -306,6 +309,7 @@ export const VInfiniteScroll = genericComponent<VInfiniteScrollSlots>()({
         )
         if (props.mode !== 'manual') {
           nextTick(() => {
+            // See #17475
             window.requestAnimationFrame(() => {
               window.requestAnimationFrame(() => {
                 window.requestAnimationFrame(() => {