fix: Add vertical scrolling support for floating elements. (#30897)

Co-authored-by: zhaiguangpeng <zhaiguangpeng@didiglobal.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

web/app/components/base/portal-to-follow-elem/index.tsx

@@ -61,9 +61,12 @@ export function usePortalToFollowElem({
       }),
       shift({ padding: 5 }),
       size({
-        apply({ rects, elements }) {
-          if (triggerPopupSameWidth)
-            elements.floating.style.width = `${rects.reference.width}px`
+        apply({ rects, elements, availableHeight }) {
+          Object.assign(elements.floating.style, {
+            maxHeight: `${Math.max(0, availableHeight)}px`,
+            overflowY: 'auto',
+            ...(triggerPopupSameWidth && { width: `${rects.reference.width}px` }),
+          })
         },
       }),
     ],