Limit text length for inlay hints

[pfoerster]

          Hi, 

I don't know if I should open a separate issue for this.
I was wondering if we can have a setting to limit the amount of text in the inlay hint.
My captions are usually huge, I would like to have only the figure number and maybe just few words from the caption but not the entire thing.

Thank you.

Originally posted by @ismasou in #753 (comment)