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kotlinlang

Hello, I found a cross-browser issue with the documentation. Not sure of the scope affected, looks like potentially a small impact.

On the Option documentation (<https://arrow-kt.io/docs/apidocs/arrow-core/arrow.core/-option/>), in the block that contains
```val valueSome = maybeItWillReturnSomething(true) is None
val valueNone = maybeItWillReturnSomething(false) is None```
Hitting the fold (+) button over and over progressively deletes the first character in the code block.

It seems to affect Firefox, Brave, and Edge.

I did a cursory look around the other core docs, and the other fold buttons seemed to be working fine.