Show whole thread when linking to any part

[dwhly]

Asked for by Chris Long. He wants to see the whole thread -- focused on the part referenced. For instance if the hypothes.is/a/ link is midway down the thread, the parts above and below would be collapsed by default, but expandable.

Similar to https://github.com/hypothesis/h/issues/1089

[tilgovi]

Is this issue about what happens when you link to an annotation that isn't the top of the thread?

[dwhly]

Yes.

[csillag]

So this should work in a way similar to what I see when I focus on a twitter message, which is at the middle of a conversation: I see the selected twitter card (with emphasis), but if I scroll up or down, I can also see the preceding and following messages, in a compact form - right?

[dwhly]

Or it could work the way the sidebar stream collapses above and below when you search for a term.

[csillag]

This would probably solve https://github.com/hypothesis/h/issues/847.

[tilgovi]

Yes, I think it would.