docs(nextjs): Add vercel specific microfrontends guide

[logaretm]

Adds micro frontends guide specific to vercel's microfrontends feature since it has multi-zone application support which doesn't require the use of module federation.

[linear]

JS-612 Test Next.js microfrontend setup

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
sentry-docs	Ready	Preview	Comment	Nov 20, 2025 11:26am

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
develop-docs	Ignored	Preview		Nov 20, 2025 11:26am

[codecov]

Bundle Report

Changes will increase total bundle size by 341.55kB (1.47%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-client-array-push	10.17MB	-6 bytes (-0.0%) ⬇️
sentry-docs-server-cjs	12.97MB	341.56kB (2.71%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.74MB	-0.0%
../instrumentation.js	-3 bytes	1.07MB	-0.0%
9523.js	-3 bytes	1.04MB	-0.0%
../app/[[...path]]/page.js.nft.json	113.86kB	884.87kB	14.77% ⚠️
../app/platform-redirect/page.js.nft.json	113.86kB	884.79kB	14.77% ⚠️
../app/sitemap.xml/route.js.nft.json	113.86kB	882.02kB	14.82% ⚠️

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	882.71kB	-0.0%
static/chunks/8321-*.js	-3 bytes	425.87kB	-0.0%
static/D_rH4XiXnBbMms71C6Mlb/_buildManifest.js (New)	684 bytes	684 bytes	100.0% 🚀
static/D_rH4XiXnBbMms71C6Mlb/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/YUp7kbLtp1m_gvErWRVKU/_buildManifest.js (Deleted)	-684 bytes	0 bytes	-100.0% 🗑️
static/YUp7kbLtp1m_gvErWRVKU/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

[inventarSarah]

Hey 👋
I haven't reviewed everything yet, but I have a question about the scope of the guide that I need answered before continuing (see my comment).
Thanks!

[inventarSarah]

is this guide only for Vercel? If so, do we need the detailed content on module federation. As I understand it, Vercel only supports mult-zone apps - please lmk :)

[logaretm]

Yep, I tried setting one up and it worked, although they don't document it:

https://github.com/vercel-labs/microfrontends-single-spa-module-federation/

It's not in their docs or listed anywhere except their GitHub, so what do you think we should do here?