Enhance at-index to list section names, like the search index

[fingolfin]

At https://docs.oscar-system.org/dev/search/?q=dim I see a long list of matches for dim, but I can separate them quite well because most are in different sections and the section titles are shown.

But on the regular index at https://docs.oscar-system.org/dev/manualindex I only see the long list of dim, repeated many times -- but no hint as to where the various dim come from.

Would it be possible to enhance the index there to match the search index, i.e., to show

dim (method, Polyhedral Complexes)

and not just

dim

?

(Even better would be of course if I could also show the signature, see issue #1038)

[mortenpi]

This got added at some point.

[fingolfin]

If it got added, then not in any released version, as https://docs.oscar-system.org/dev/manualindex/ still has the same issue... ?

[mortenpi]

The Oscar docs literally show what's being asked in the OP?

But with #2202, Documenter shows even more context sometimes. That said, if there are specific things missing post-#2202, please do open new issues -- we can definitely improve further.

[mortenpi]

Ohhhh, I misunderstood the issue. This is about the at-index block, not search. Yeah, okay, that hasn't changed.