* added config to support code split
* splitting config
* moved the window declaration in EE file as its dependency will be updated in EE
* CE: Splitting ApiConstants and SocialLogin constants
* CE: split login page
* CE: moved getSocialLoginButtonProps func to EE file as it's dependencies will be updated in EE
* added key icon
* CE: created a factory class to share social auths list
* Minor style fix for social btns
* Updated the third party auth styles
* updated jest config
* updated third party login registry class
