add karma conf to run test on chrome headless without window

correct jasmine tests that where in error

Use refresh token to get new access_token for the expire one.

Closes #DLCM-595

implement login/logout for mobile toolbar component

use correct value for aouth2

clean imports after a rebase on master

add lint fix script and lint the project

add oauth2 code flow authentification, now login and logout operations are managed using NgXs store.

tslint : use double quote instead of single

chore(dlcm-portal): translate

add translation

Organization unit creation fix

Set language on store and determined default language from session storage, browser or default setting

Make visible the current menu