Allow abbreviating how many set elements are printed with col_vals_in_set() and interrogate().

Prework

• Read and abide by pointblank's code of conduct and contributing guidelines.
• Search for duplicates among the existing issues (both open and closed).

Proposal

col_vals_in_set() can handle fairly big sets, but when we interrogate() the resulting agent we end up with incredibly tall rows:

Is it possible to set a limit on how many set members are printed, along the lines of the current sample_* arguments to interrogate?

(Even if not, this is probably the most useful package I've come across in the last few years. Thanks for all your work!)

Update: On closer inspection this only seems to happen when the table is rendered in Quarto. So it may not be a pointblank issue at all. I'll do some testing and come back when I have some slightly more useful information.