Allow disabling "autoCloseBrackets" (or, possibility of light customization of CodeMirror settings)

Observable Desktop is wonderful! Now that I'm using it more I have another request in the same spirit as https://github.com/observablehq/notebook-kit/issues/37 and https://github.com/observablehq/notebook-kit/issues/62 - it would be awesome if there was a way to do some basic customization of the editing experience.

Over the past few days I've noticed myself tripping over this behavior, though I know some people like it:

https://codemirror.net/docs/ref/#autocomplete.closeBrackets

(I'm not 100% sure this is the linked behavior, but it seems related)

I don't usually program with bracket matching of any sort, and right now I'm switching between Sublime Text and Observable Desktop where the behaviors are different, so while it's a reasonable editor behavior it would be amazing if there was some way to customize this and other basic settings, to help those of us who switch between editors multiple times a day.

• Zed has a setting for this
• Sublime text has a setting
• VSCode does too

The issue names CodeMirror's autocomplete.closeBrackets setting but no repository file, entry point, or test. First locate where the editor is configured, then assess how a user-facing option could disable auto-closing without expanding into unspecified customization; done means the requested behavior can be controlled and verified.