TextInputWidget: Reuse a single clone instead of appending and removing new ones

Also, use '.style.display' instead of '.show()' and '.hide()'
http://jsperf.com/adjustsize/2

Bug: T75328
Change-Id: I45ba2ba9d0009918043a91888f5f281f7a67e65b
Merge "TextInputWidget: Reuse a single clone instead of appending and removing new ones"