Added support for App Router + SSR, moved to tsup for ESM/CJS

[carloskelly13]

Description

• Removes reference to create react app in favor of Vite + NextJS
• We move to tsup to build the CJS and ESM outputs, keep webpack for UMD, which is required by one-page.
• Fixes Spectacle support to work in SSR environments including NextJS App Router
• Adds the <DefaultTemplate /> component which is often recreated each time a person makes a deck 👇🏻

Updated Docs

Tutorial → https://spectacle-docs-website-hsg05kt4y-formidable-labs.vercel.app/docs/tutorial
Templates → https://spectacle-docs-website-hsg05kt4y-formidable-labs.vercel.app/docs/api-reference#templates-

Addresses #1260

Type of Change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

1. Running the examples including one-page after building the library
2. Following the examples in the documentation and yarn/npm linking the library.

Note If you are testing one page you will need to build the library and uncomment out the local spectacle dist file as it will be expecting the new DefaultTemplate export.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
spectacle-docs-website	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 8, 2023 4:41pm

[ryan-roemer]

Great start! Mostly minor cleanup, one Node SSR thing that should be straightforward.

Also, presently I'm getting a git diff after install of pnpm-lock.yaml

[ryan-roemer]

Great start! Mostly minor cleanup, one Node SSR thing that should be straightforward.

Also, presently I'm getting a git diff after install of pnpm-lock.yaml

[gksander]

lgtm