* permit bodyParserLimitSize configuration

set bodyParserLimitSize by default to 1mb
permit modifications by environment variable

* fix: use bodyparserlimit config with fallback default
Co-authored-by: Nicolas Giard <github@ngpixel.com>

+ Remove duplicated await
+ Replace some legacy codes with ES6
+ Fix some of eslint problems

* fix: admin api UI update

* feat: admin api - create dialog UI

* feat: admin api - create + list keys

* feat: admin api localization (wip)

* feat: admin api localization

* feat: admin api - toggle state

* feat: process API keys + format gql request errors to json