Need support onFocus and onBlur events for time handling

[georg-pandekhfumani-redshelf]

Need to support onFocus and onBlur events in Snackbar.js file to prevent hiding snackbar when we have focus on it.

Expected Behavior

When we focus on snackbar / close icon / action buttons - don't hide snackbar. When we blur from snackbar - resume timer. When we have focus and did onMouseLeave event - don't hide snackbar, beacuse we still focused on it.

Current Behavior

When we focus on Snackbar - timer didn't stoped.

Steps to Reproduce

1. use 'Tab' key or screen reader to focus on snackbar (close icon, actions buttons, whole snackbar);
2. see that snackbar hides after autoHideDuration time passes.

In the link use "default" snackbar where we have action buttons.
Link:

1. https://codesandbox.io/s/github/iamhosseindhv/notistack/tree/master/examples/simple-example

Context

Your Environment

Tech	Version
Notistack	v2.0.4
React	-
Browser	Chrome 101.0.4951.54