Scaladoc snippet expanding and copying regression

[rochala]

Compiler version

3.1.3 - RC1

Minimized example

Scaladoc snippet copy ignores newlines when it's done via "copy" icon.
Scaladoc snippets has option to show collapsed lines with toggle button. It doesn't work right now as you can see at: https://dotty.epfl.ch/api/scala/quoted/Quotes$reflectModule$ClassDefMethods.html#body-5f

Output

Expectation

Snippets copying should properly include newlines.
Snippets should be expanded properly as they did in earlier versions ( this is scala 3.1.1 )
https://scala-lang.org/api/3.1.1/scala/quoted/Quotes$reflectModule$ClassDefMethods.html

[pikinier20]

Recently bumped highlight.js is removing .hideable class in highlighted snippets...

[KacperFKorban]

@pikinier20 Is it possible to revert to the previous version of hl.js and only copy the code for (e)bnf syntax?

[pikinier20]

I did some workaround to make the current version work properly. After few checks I'm gonna make a PR