Using enter, arrow & escape keys on search field

[MathieuDR]

A few suggestions to make the search field more accessible and keyboard-friendly

• Escape should "Cancel" the search
• Arrow keys should iterate through the list of results ( a kind of hover effect)
• Enter should select the first, or selected item with the arrow keys.

Doing this will completely make the search field usable through the keyboard.

Kind of related to #193

[Jakesterwars]

Points 2 and 3 seem to work already. Point 1 just needs a key capture in AutoSuggestInput.

[psikoi]

Points 2 and 3 only work for the AutoSuggestInput component, but not for the Selector (with search) component

[psikoi]

Added in the new beta website https://beta.wiseoldman.net/

I'll consider it done as it'll eventually be live in production. Closing.