* feat: Passing hits from SearchHits to parent SearchBar to keep track of with the keyboard. Moved all logic for number of hits to WithInstantSearch.js
* Basic functionality working
* Added up/down looping functionality to dropdown
* Set 's' and '/' as shortcuts to focus the search bar
* Moved some things around and added functionality for mouse hovering to change the selected hit. Reworked a bit of the global CSS so mouse hovers don't cause multiple highlights in the dropdown
* Brought back magnifying glass icon
* feat: Switched out onKeyDown and key codes for react-hotkeys
* Refactoring based on review