Conference links usability

[garloff]

When using the link: attribute for conferences, the whole entry can be clicked upon.
This is not obvious for users, you can't see which entries have such links and which ones don't.
In addition, sometimes, we might want to have more than one link, such as linking conference program, proceedings, videos, ...
Think about improving our engine here, so we can display more information and make it more obvious.

[garloff]

Seems to work nicely, see staging.
We have just a link icon (font-awesome "link") ahead of the title for conference entries with link.
Note that this is not in any way qualifying the link -- sometime we link the event, the event schedule/program, the particular session in the event schedule, the video, the proceedings.
This is something we would do better of we start from scratch, but I don't feel like going through all links and qualifying them after the end ...

The second part (yet to be done) would be to allow for additional links; there is space below the slides link.
Fitting the first reasoning, these would be without explanation or specific symbol also, just random additional links ...

[garloff]

OK, I attempted to do the 2nd part, but the way things are formatted, the links seem to apply to the whole div,
I'd need a new div ...