[lexical-react] Bug Fix: Add 'yjs' as optional peer dependency for Yarn PnP compatibility

[grapgrap]

Description

Re-submission of #8053 (closed due to unsigned CLA).
@flex-jonghyen is my own work account, but I'm unable to sign the CLA under it — so I'm re-opening this from my personal account.

Current problem:

• @lexical/react includes @lexical/yjs as a dependency
• @lexical/yjs requires yjs as a peer dependency (>=13.5.22)
• However, yjs is not declared in @lexical/react
• In strict dependency management environments like Yarn PnP, this causes a resolution error for yjs

Changes:

• Added yjs as an optional peer dependency in @lexical/react (version range matches @lexical/yjs: >=13.5.22)
• Users who don't use collaboration features are not affected

Test plan

Before

Yarn PnP environment fails to resolve yjs.

Workaround required in .yarnrc.yml:

packageExtensions:
  '@lexical/react@*':
    peerDependencies:
      'yjs': '*'

This workaround confirms that adding yjs as a peer dependency resolves the issue.

After

Works without the workaround.

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Project	Deployment	Actions	Updated (UTC)
lexical	Ready	Preview, Comment	Apr 18, 2026 6:07am
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[etrepum]

CI is going to fail until pnpm-lock is updated accordingly