[opensuse-buildservice] updates on notification system in obs

Hey there, On our journey to a full-fledged notification system https://build.opensuse.org/my/notifications, we have put emphasis on the content of the notifications itself and kept improving several UI parts to increase productivity and user experience. Check out https://openbuildservice.org/2020/06/10/events-to-notifications/ for more information. Regards, Your OBS Team -- Lukas Krause, Build Solutions SUSE Software Solutions Germany GmbH Maxfeldstr. 5 90409 Nürnberg Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer