fix (live-preview): populates Lexical - blocks and inline blocks relations are not populated

[tsemachh]

Link to reproduction

No response

Environment Info

Node.js v22.8.0

Binaries:
  Node: 22.8.0
  npm: 10.8.2
  Yarn: N/A
  pnpm: 9.4.0
Relevant Packages:
  payload: 3.0.0-beta.104
  next: 15.0.0-canary.104
  @payloadcms/db-mongodb: 3.0.0-beta.104
  @payloadcms/graphql: 3.0.0-beta.104
  @payloadcms/live-preview: 3.0.0-beta.104
  @payloadcms/next/utilities: 3.0.0-beta.104
  @payloadcms/plugin-cloud-storage: 3.0.0-beta.104
  @payloadcms/richtext-lexical: 3.0.0-beta.104
  @payloadcms/storage-s3: 3.0.0-beta.104
  @payloadcms/translations: 3.0.0-beta.104
  @payloadcms/ui/shared: 3.0.0-beta.104
  react: 19.0.0-rc-06d0b89e-20240801
  react-dom: 19.0.0-rc-06d0b89e-20240801
Operating System:
  Platform: linux
  Arch: x64
  Version: #44-Ubuntu SMP PREEMPT_DYNAMIC Tue Aug 13 13:35:26 UTC 2024
  Available memory (MB): 31817
  Available CPU cores: 8

Describe the Bug

When author enter inline blocks or block if the block has relation field like upload or any other relation.
The data in the live preview message does not contain the document of the relation.
For now there's a need to call API for each relation and sometimes the live preview is not responding

Reproduction Steps

Clone:
https://github.com/tsemachh/payload/tree/bug(live-preview)-LexicalRelationsNotExpanded
pnpm dev live-preview
Debug on :
webpack://_N_E/packages/live-preview/src/traverseRichText.ts?7b26
Add to Test tab to the lexical content media block and see that it doesn't expand it regardless the depth provided
Example of debug:

Adapters and Plugins

No response

[tsemachh]

Actually without this working , we are moving back to regular preview , it's much more solid than this one