[AAE-7101] - Introduced Eslint to ACA and added some fix to avoid errors (#2424)

* Conversion to ESlint

* Fixed ESLINT for ACA

* [AAE-6638] - typo in eslint file

* [AAE-6638] - attempt to fix problem on linting

* Check caching to improve lint speed

* Improved eslint for content-app

* Added new cache

* Remove cache file

* Removed eslintcache

* Attempt to make eslint run on travis

* Slow ng lint on travis

* Fixed eslint error

projects/aca-shared/rules/src/user.rules.ts

@@ -29,6 +29,4 @@ import { RuleContext } from '@alfresco/adf-extensions';
  * Checks if user is admin.
  * JSON ref: `user.isAdmin`
  */
-export function isAdmin(context: RuleContext): boolean {
-  return context.profile.isAdmin;
-}
+export const isAdmin = (context: RuleContext): boolean => context.profile.isAdmin;