Exclude media cards from search

[hugovk]

Search for "coffee":

The second one is https://ep2025.europython.eu/media/card/jacob-coffee/ which should be excluded from search.

(Plus lots of duplicates, see #1252)

[clytaemnestra]

@hugovk What is the reasoning to exclude it from search?

I use it a lot for socials. When speakers update their photo to Pretalx and ask for their card to be regenerated, I search for the card by their name on the website, make a screenshot and update the socials. I also instruct them to screenshot it themselves, if they want to share it themselves. It's much easier that way, than to search by slug.

[hugovk]

For me as a EuroPython attendee, it's not a useful result. I want to get things like talk pages and schedules.

I can see it's useful for organisers and speakers to help promote, but it feels like it shouldn't be part of the main website for attendees.

[clytaemnestra]

Alright. We can exclude it and find cards by slug only. Hopefully, no more speaker photo change requests.