fix(stack-snippet): expose stack-snippet options and metadata types

[troygould-stack]

Describe your changes

A couple of options interfaces passed to the StacksEditor are not exported. Therefore, I had to recreate these interfaces when I wanted to use them. See:
https://github.com/StackEng/StackOverflow/blob/571e63834ee5920c9f5db16b97b84f94c85a872d/StackOverflow/_Scripts/islands/ask-question/src/shared/stackSnippets.ts#L18

[changeset-bot]

🦋 Changeset detected

Latest commit: 7b2dba6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@stackoverflow/stacks-editor	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[netlify]

✅ Deploy Preview for stacks-editor ready!

Name	Link
🔨 Latest commit	7b2dba6
🔍 Latest deploy log	https://app.netlify.com/projects/stacks-editor/deploys/685ac8bd7c056c00087bd480
😎 Deploy Preview	https://deploy-preview-457--stacks-editor.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[giamir]

@troygould-stack Thanks for the PR.

These changes need a patch release in order to be used in Core. To do that you can use npx @changeset/cli in this PR branch to generate a changeset. Once the PR is merged you can publish the package in autonomy by following the instructions in this part of the README.

Sidenote: Instead of hardcoding things in Core an alternative workaround would have been to write a reference to the internals of the editor I believe (I am not 100% sure though and have not tested it):

import type { SnippetMetadata } from "../../../../node_modules/@stackoverflow/stacks-editor/dist/plugins/official/stack-snippets/src/common";

This PR is the right call, you don't want to dig into internals of packages like that in general since internals should stay private. That said it might save you some copy/paste next time you need a temporary workaround.