<InputArea/> - Tests noise fixes (#5610)
<InputArea/> - Tests noise fixes (#5610)

* <InputArea/> - Fix prettier warnings

* <InputArea/> - Cancel debounced function on unmount
This solves an issue on tests, with the function running after the component has been unmounted and throwing an error.

* <InputArea/> - If computed style has no fontSize, don't try calculating the rows count
This can happen in tests.
wix/wix-style-react,wix/wix-style-react,wix/wix-style-react,wix/wix-style-react