sable doesn't like <code class="language-*">

[poolcritter]

Describe the bug

sable renders <code> elements with a language-* (i.e. that would be syntax-highlighted) as plaintext.

Reproduction

send “<code class="language-scala">println("awa")</code>”

Expected behavior

sable should show println("awa") in monospace, ideally syntax-highlighted (as Fluffy does)

Platform and versions

- OS: Linux x86_64
- Browser: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0
- Sable: v1.20.0-dev (e3e1d57)

Additional context

sable:

fluffychat:

{
  "body": "lazy val intlit: PP[Int] = radix.flatMap(rd => PP.feast(Character.digit(_, rd) != -1).collect(Function.unlift(dx => Integer.parseInt(dx, rd).tryNumbers))) is perfectly comprehensible smh",
  "com.beeper.linkpreviews": [],
  "format": "org.matrix.custom.html",
  "formatted_body": "<code class=\"language-scala\">lazy val intlit: PP[Int] = radix.flatMap(rd =&gt; PP.feast(Character.digit(_, rd) != -1).collect(Function.unlift(dx =&gt; Integer.parseInt(dx, rd).tryNumbers)))</code> is perfectly comprehensible smh",
  "m.mentions": {
    "user_ids": [
      "@gimmechocolate:bark.lgbt"
    ]
  },
  "msgtype": "m.text"
}