Bug: Regression in test suite after merging #6027 (Fix OverflowNode configuration)

[etrepum]

Test failures since #6027. It must've been in a state where the extended test suite wasn't running, so there were no plain text e2e tests run and the PR was green when it was merged.

For example:

  4 failed
    [webkit] › packages/lexical-playground/__tests__/e2e/CharacterLimit.spec.mjs:120:3 › CharacterLimit › UTF-16 › can type new lines inside overflow 
    [webkit] › packages/lexical-playground/__tests__/e2e/CharacterLimit.spec.mjs:175:3 › CharacterLimit › UTF-16 › can delete text in front and overflow is recomputed 
    [webkit] › packages/lexical-playground/__tests__/e2e/CharacterLimit.spec.mjs:120:3 › CharacterLimit › UTF-8 › can type new lines inside overflow 
    [webkit] › packages/lexical-playground/__tests__/e2e/CharacterLimit.spec.mjs:175:3 › CharacterLimit › UTF-8 › can delete text in front and overflow is recomputed 

Lexical version: nightly

Steps To Reproduce

npm run test-e2e-plain-*

The current behavior

Tests fail

The expected behavior

Tests pass

Impact of fix

Unblock PRs