fix(test): fix editor3 e2e test
fix(test): fix editor3 e2e test

after making change in editor3 it must wait a bit before saving,
there is some timeout which angular is not aware of.

marwoodandrew/superdesk-client-core,mdhaman/superdesk-client-core,pavlovicnemanja/superdesk-client-core,ioanpocol/superdesk-client-core,superdesk/superdesk-client-core,petrjasek/superdesk-client-core,marwoodandrew/superdesk-client-core,marwoodandrew/superdesk-client-core,ioanpocol/superdesk-client-core,marwoodandrew/superdesk-client-core,superdesk/superdesk-client-core,mdhaman/superdesk-client-core,superdesk/superdesk-client-core,pavlovicnemanja/superdesk-client-core,pavlovicnemanja/superdesk-client-core,pavlovicnemanja/superdesk-client-core,ioanpocol/superdesk-client-core,ioanpocol/superdesk-client-core,superdesk/superdesk-client-core,mdhaman/superdesk-client-core,mdhaman/superdesk-client-core,petrjasek/superdesk-client-core,superdesk/superdesk-client-core,pavlovicnemanja/superdesk-client-core,petrjasek/superdesk-client-core,mdhaman/superdesk-client-core,petrjasek/superdesk-client-core,marwoodandrew/superdesk-client-core,ioanpocol/superdesk-client-core,petrjasek/superdesk-client-core