Discord spoilers not bridged properly to Matrix

[0xDEADCADE]

On Discord, a spoiler can be created with two pipe characters | surrounding any text, like so: ||spoiler||. This bridges as a <span data-mx-spoiler> on the Matrix side. Discord allows there to be any number of spaces between the spoilered text and the pipe characters, the following will be spoilered on Discord: || spoiler ||, that includes spoilers that are just spaces || ||, but not newlines.

If a Discord spoiler contains a space between the text and the pipe characters, it does not get bridged as a spoiler to Matrix. || spoiler|| will work on Discord, but will appear as the text literal on Matrix.

[erkinalp]

<summary/> <details/> could be used.