Allow horizontal scrolling for wide code blocks

[fsimonis]

Some code blocks should be horizontally scrollable.

Example is the output of the precice-profiling tool, which are formatted tables. Not allowing horizontal scrolling makes them close to unreadable.

[uekerman]

Seems that if one resizes the page and then back, scrolling works.
https://precice.org/tooling-performance-analysis.html

[uekerman]

Could be connected to whether there are images below or not, triggering a layout shift.

[MakisH]

Trying this with various pages, including https://precice.org/tooling-performance-analysis.html, on Firefox and Chromium, horizontal scrolling in code blocks always works.

Closing, reopen with more details if encountered again.

[MakisH]

I encountered now such a case: log and other plaintext code blocks seem to be wrapping text by default. Example from the reworked output files page:

Using Firefox 146.