fix(admin): fix "hide content and menu when admin is forbidden"
fix(admin): fix "hide content and menu when admin is forbidden"

after login (not support-login) there was always the forbidden message. after a page refresh the message disappeared. the problem was the after the login there is no call of "nice2/session" which updated the adminAllowed flag. only after the first hearBeat the flag was updated

Refs: TOCDEV-4323

tocco/tocco-client,tocco/tocco-client,tocco/tocco-client