[Wasm] `AutoSuggestBox` popup remains fixed in its original position when scrolling

[morning4coffe-dev]

          After performing a search, the table remains fixed in its original position when scrolling the page.

https://github.com/unoplatform/Uno.Gallery/assets/173818531/f41d1c81-f31c-4357-acb6-42ae75ef5000

Originally posted by @jhanvi03 in https://github.com/unoplatform/Uno.Gallery/issues/1069#issuecomment-2211338369