Reference the presenter's slide deck on the EIP's forkcast tab

Presenters on ACD calls typically share a link to their slide deck in the zoom chat. It would be useful to have that link referenced/integrated on the corresponding forkcast tab so it can be found alongside the other context (timestamp, specs, etc.).

Acknowledged this is hard to generalise; slide decks aren't always shared, the link source is informal (zoom chat), and there's no standard place they live. Filing as a stretch suggestion rather than a concrete ask.

Start by locating the implementation of the corresponding forkcast tab and how it currently presents timestamps and specs. Investigate whether slide-deck links from Zoom chat have a reliable source or storage location. Done would require an agreed way to associate optional deck links with tabs and display them alongside the existing context.

Written by the indexing model from the issue text.