docs: remove selection restriction

This used to make things such that the copy button for `console`
blocks would only copy the input and not the output, but it
doesn't seem to have that effect any more, and now just prevents
selecting portions of the output.

That's a PITA because eg: the CLI --help pages use `console`
to show which options are available.

I think something has probably changed somewhere in upstream mkdocs
because this used to work as I mentioned above.

refs: https://github.com/squidfunk/mkdocs-material/issues/6697

docs/style.css

@@ -1,11 +1,3 @@
-/* prevent selection of prefix and output for console syntax */
-.language-console .gp, .language-console .go {
-  user-select: none;
-  -webkit-user-select: none; /* Chrome/Safari */
-  -ms-user-select: none; /* IE10+ */
-  color: !important pink;
-}
-
 @font-face {
   font-family: "Symbols Nerd Font Mono";
   src: url(fonts/SymbolsNerdFontMono-Regular.ttf) format("truetype");