bug#59833: 29.0.60; json-ts-mode fontifies everything as string

[Eli Zaretskii]

> Cc: Yuan Fu <casouri@gmail.com>, 59833@debbugs.gnu.org, jostein@kjonigsen.net
> Date: Mon, 5 Dec 2022 15:52:17 +0100
> From: Jostein Kjønigsen <jostein@secure.kjonigsen.net>
> 
> I've never heard of js-json-mode until today. I always use json-mode 
> (which AFAIK) is still the default for json-files, unless overridden in 
> your own .emacs setup.

Not in Emacs 29.  I see the following in files.el, as part of
auto-mode-alist:

     ("\\.json\\'" . js-json-mode)