fix(web): hide bubble menu when divider is selected in full-email-builder example

[dielduarte]

Summary

• Adds 'horizontalRule' to hideWhenActiveNodes in the full-email-builder example so the text bubble menu no longer appears when a divider block is selected.

Context

The bubble menu trigger (textSelection) now correctly suppresses the menu for any NodeSelection whose node type is in hideWhenActiveNodes (fixed in the companion PR). This change updates the example to opt in to that behavior for the divider.

Test plan

• Open the full-email-builder example (/editor/full-email-builder)
• Add a divider block via the slash command
• Click the divider — bubble menu should not appear

🤖 Generated with Claude Code

---

Summary by cubic

Hide the text bubble menu when a divider is selected in the full-email-builder example by adding horizontalRule to the BubbleMenu’s hideWhenActiveNodes list.

^{Written for commit b16be0f. Summary will update on new commits.}

[vercel]

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

Project	Deployment	Actions	Updated (UTC)
react-email	Ready	Preview, Comment	May 13, 2026 4:22pm
react-email-demo	Ready	Preview, Comment	May 13, 2026 4:22pm

[changeset-bot]

⚠️ No Changeset found

Latest commit: b16be0f

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Auto-approved: This change adds 'horizontalRule' to the hideWhenActiveNodes list in the BubbleMenu of a full-email-builder example, preventing the bubble menu from appearing when a divider is selected; it is a trivial UI configuration change with no impact on core logic or production systems.}