Self-plagiarise at_panel() function

[teunbrand]

I had a good brainfart last week that I wish to immortalise as a function.
Code in teunbrand/ggplot-extension-club#16 (reply in thread) for context.

[EvaMaeRey]

Why not use x = I(.1), y = (.1) in the examples? And maybe throw some hjust and vjust in there?

[teunbrand]

I would like that better too, but because that is a 3.5.0 feature and I depend on 3.4.2 I cannot.
I'm not throwing the justification in there as it distracts from the thing that I want to use the examples for, which is to showcase how to use the expr argument.

[EvaMaeRey]

Ah, right, 3.5.0. And makes sense to stay focused in the example!

[teunbrand]

Fixed by 8223cec