Make suggestion list trigger after correcting typo when allowWhitespace is active

[andersHj]

Hi, when using the allowWhitespace option and typing something with several words, it would be nice to make the suggestion list reappear in the case where you make a typo, and then hit backspace to fix your error. The way it is now I have to go all the way back to the first word to get it to reappear.

Example:

https://codesandbox.io/s/reacttextareaautocomplete-forked-489dh?file=/src/index.js