OZG-6731 OZG-6758 Show users list

alfa-client/apps/admin/src/index.html

...ient/libs/admin/settings/src/lib/admin-settings.module.ts

...client/libs/admin/settings/src/lib/user/user.util.spec.ts

alfa-client/libs/admin/settings/src/lib/user/user.util.ts

...n/settings/src/lib/users-roles/users-roles.component.html

...n/settings/src/lib/users-roles/users-roles.component.scss

...ettings/src/lib/users-roles/users-roles.component.spec.ts

...min/settings/src/lib/users-roles/users-roles.component.ts

...stem/src/lib/icons/mailbox-icon/mailbox-icon.component.ts