Add Performer field and proper Structured Data

[BigActual]

Feature Request

Field for Performer and associated Structured Data are missing from the events on PM Woodwind. This is an important SEO factor for Paul's site.

Please describe the feature you are requesting.

https://developers.google.com/search/docs/advanced/structured-data/event

Do you have mocks of what the feature should look like? If so, please include them (Preferably as a JPEG, pasted into the Issue content)

No, it's the addition of a field, so let's put it above the date and time