Reuse the existing CodeMirror 6 instance

[dbarenholz]

With the new Obsidian we should have access to the CodeMirror 6 instance.

Perhaps there is a reliable way to reuse the existing instance, which makes it so that we don't have to create special views. This will likely result in better performance.

I don't have any experience with CM6 though...

[pm64]

When this update is made, I hope we will still have the same raw text editing experience (NOT Markdown) obsidian-plaintext currently provides.

[dbarenholz]

When this update is made, I hope we will still have the same raw text editing experience (NOT Markdown) obsidian-plaintext currently provides.

It's still a completely new, custom View. I (and eventually through settings you too) have full control over editing experience. For now, after having made the switch (it's implemented), the experience is the same as before.