* Bump @looker/components and styled-components to the latest

Consequently I also upgraded
 @testing-library/*
 jest-styled-components

 Also, marked @types/* as devDependencies in hack extension

* Replaced ActionList with DataTable in hackathon extension

This was required due to the @looker/components update.

'variant' is no longer a valid prop, replaced with 'color'

* Replaced ActionList with DataTable in API Explorer

* Replaced maxWidth with width and assigned a size ramp value to it

* Fixed broken DocMethodSummary tests

Added aria-label for both accessibility and testing purposes

* yarn.lock

* Removed jsx syntax error which somehow made it through the build