Move create-keystone-app package inside the monorepo

[iamandrewluca]

• [X] Move create-keystone-app inside mono-repo
• [X] https://github.com/keystonejs/create-keystone-app/pull/427

PS: I was looking at create-payload-app maybe we can borrow that code for KS also, which will allow multiple KS templates

pnpm publish --dry-run

```shell ✔ You're on branch "feat/move-create-keystone-app" but your "publish-branch" is set to "master|main". Do you want to continue? (y/N) · true npm notice npm notice 📦 create-keystone-app@9.0.1 npm notice === Tarball Contents === npm notice 1.1kB LICENSE npm notice 356B README.md npm notice 63B cli.js npm notice 295B dist/create-keystone-app.cjs.d.ts npm notice 6.6kB dist/create-keystone-app.cjs.dev.js npm notice 200B dist/create-keystone-app.cjs.js npm notice 6.6kB dist/create-keystone-app.cjs.prod.js npm notice 4.8kB dist/create-keystone-app.esm.js npm notice 46B dist/declarations/src/index.d.ts npm notice 109B dist/declarations/src/index.d.ts.map npm notice 971B package.json npm notice 42B starter/_gitignore npm notice 2.7kB starter/auth.ts npm notice 1.0kB starter/CHANGELOG.md npm notice 1.0kB starter/keystone.ts npm notice 397B starter/package.json npm notice 2.9kB starter/README.md npm notice 9.5kB starter/schema.graphql npm notice 1.1kB starter/schema.prisma npm notice 5.2kB starter/schema.ts npm notice 195B starter/tsconfig.json npm notice === Tarball Details === npm notice name: create-keystone-app npm notice version: 9.0.1 npm notice filename: create-keystone-app-9.0.1.tgz npm notice package size: 11.7 kB npm notice unpacked size: 45.2 kB npm notice shasum: decfd7d53d50872d7d10daf98aaa27700786eb95 npm notice integrity: sha512-CHG5zV1StXuDF[...]WvYe3RzlrnuEw== npm notice total files: 21 npm notice npm notice Publishing to https://registry.npmjs.org/ with tag latest and default access (dry-run) + create-keystone-app@9.0.1 ```

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[iamandrewluca]

@dcousens please take a look, and tell me please if I need to change something else.

[dcousens]

I was looking at create-payload-app maybe we can borrow that code for KS also, which will allow multiple KS templates

I don't mind the idea of different templates, but let's focus on this being a 1:1 move into this monorepo from our create-keystone-app repository, wherever we can, and then we can talk about any UX improvements in a different pull request.

[dcousens]

@iamandrewluca before I review this in depth, can you please highlight any changes you needed to make when porting this from https://github.com/keystonejs/create-keystone-app (as comments on the diff).

This will help me focus on what is different instead of reviewing the existing create-keystone-app code [which is needing a re-write, but that's a different discussion to have after this pull request]

[iamandrewluca]

@dcousens I left some comments

PS: I synced the branch with the main from upstream. Please check if the pnpm lock file has been updated correctly (don't have much experience with pnpm)

On conflict I picked the version from main, then I run a pnpm install (usually this is what I do with npm on lock conflicts)