As an event organizer, I want to be able to add organizing partners (such as GLAM institutions) to my EventDetails, so that people who join the event can understand who is involved at an institutional level rather than only at an individual level as an organizer.

Note: This can be a new optional field, and the information can be displayed below 'Organizers' in 'More Details' and EventDetails.

One of the complexities around this is that we can only store the institution as free text, most likely, since there is no predetermined list of institutions that will exclusively organize events, so it is not clear how useful this data will be for analytics and search filters.