docs: clarify root layout requirements and suppressHydrationWarning
usage with App Router
#1927
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❓ Context
While working with
next-intl
and the App Router, I ran into hydration warnings due to<html>
and<body>
tags being duplicated inapp/layout.tsx
andapp/[locale]/layout.tsx
:This issue was hard to track down until I found issue #1385, which explains the cause but doesn't currently link to a fix in the documentation.
✅ What This PR Does
This PR updates the documentation to:
<html>
and<body>
must exist in both layoutssuppressHydrationWarning
app/layout.tsx
andapp/[locale]/layout.tsx
✨ Wonderful Result