Inside tick labels show under overlayed subplots with zorder

[archmoj]

          @archmoj: Sorry for the delay in testing. I finally got around to it.

The issue with the gridlines seems to be resolved, but we have a similar situation with the tick labels. Here is a codepen displaying the problem:

https://codepen.io/Djeramon/pen/RwzvXQX

What it looks like in the new test version:

From my understanding, tick labels and ticks should always be drawn on top of the traces, correct?

Originally posted by @stephprobst in #7171 (comment)

[stephprobst]

Related: #7235