vendors database - user can't see roles in filtering modal without view_role privilege

[plakitkelly]

Preconditions: User has the privilege view_vendor_db and HAS NOT view_role

Open "Teostajate andmebaas" and click on filtering button

Actual result: user without view_role privilege can't see roles in filtering modal Expected result: user can filter the table by role without view_role privilege

[MariusJulius]

update wiki with privilege