UX: Address Bar suggestion keyboard interaction

[manojVivek]

Add the usual drop-down's keyboard interactions for the address bar suggestions:

1. Up and Down keys to highlight the items in the list
2. Enter key to navigate to the highlighted URL.

[karthick3018]

@manojVivek thanks !

[manojVivek]

Also, we can add ESC key to close the suggestions.

[karthick3018]

yeah that will be gud working on that too !

[manojVivek]

@abakermi This issue was already picked up by @karthick3018. It would have been great if you could have picked an un-assigned issue. :)

@karthick3018 Do you mind if we go ahead with @abakermi's PR?

[abakermi]

@manojVivek sorry I have missed , if @karthick3018 not started , we go ahead and check

[karthick3018]

@manojVivek your call manoj i've done 70% of work with downshift !

[manojVivek]

Ok @karthick3018, let's go with @abakermi's PR this time then.

You can check out the other issues that we have. :)