Ignore double pipes || inside a code block inside a Spoiler

When creating a spoiler which contains a code block, a logical or symbol uses the same two pipes as the spoiler tag. This means that a spoiler with a code block containing those symbols will break.

IE:
||```js
if(a || b) {
  // do a thing
}
```\\

Breaks the spoiler block after the “a ||”.

Expected behavior is that all markdown symbols within the code block should be ignored, the same way they are for all other markdown symbols.