fix: escape module specifier for snippet after quoted

[jasonlyu123]

Fixes #53290. I think The original fix for #52543 isn't in the correct order. In TypeScript 5.0 it became import { foo } from "\/foo"; instead of import { foo } from "$lib/foo";

[andrewbranch]

Yikes, quote was doing more work than I realized:

export function quote(sourceFile: SourceFile, preferences: UserPreferences, text: string): string {
    // Editors can pass in undefined or empty string - we want to infer the preference in those cases.
    const quotePreference = getQuotePreference(sourceFile, preferences);
    const quoted = JSON.stringify(text);
    return quotePreference === QuotePreference.Single ? `'${stripQuotes(quoted).replace(/'/g, "\\'").replace(/\\"/g, '"')}'` : quoted;
}

JSON.stringify doubled up on the backslashes.

[andrewbranch]

Thanks @jasonlyu123!