Add a close button to "Input with button".

[JimLovesPineapples]

Hey, I was going through the notifications section and saw it had no close button or a timeout.
Of course when in dev you can put one but I think It would be better if the docs had one since I need to refresh to make it go away.
Also loving the hooks and can't wait to try them out on my next project !

[rtivital]

You can click send button to make it go away (it does not actually send your email anywhere), that's fair though, I think we can add a close button to now confuse anyone, feel free to submit a PR with a fix if you want to contribute

[jerebtw]

Should it auto close or allow close? @rtivital

Because I think a close button doesn't look that good.

[rtivital]

It should auto close