How do I set quote preference to 'single' for Svelte files?

[jamauro]

I'd prefer to use single quotes but when I click save, Zed changes them to double quotes. This appears to only happen in .svelte files.

Here's what I tried inside of Zed settings to no avail:

"lsp": {
    "typescript-language-server": {
      "initialization_options": {
        "preferences": {
          "quotePreference": "single"
        }
      }
    }
  }

[korywka]

I think it is not typescript server, but https://github.com/sveltejs/language-tools/blob/master/packages/language-server/README.md#sveltepluginsvelteformatconfigsinglequote