Fix Governor Cross-Chain Execution appearing as an empty dropdown

[ericglau]

Cross-Chain Execution is a single boolean with no sub-options, but was rendered as an expandable section whose chevron toggled an empty region.

It's now a plain checkbox in the Settings group next to Storage, matching how other single-boolean Governor extensions appear.

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[coderabbitai]

Walkthrough

The governor settings replace the expandable Cross-Chain Execution control with an inline checkbox. The checkbox includes an ERC-7786 gateway help link and describes the CrosschainRemoteExecutor requirement.

Changes

Governor controls

Layer / File(s)	Summary
Inline cross-chain execution control packages/ui/src/solidity/GovernorControls.svelte	The settings checkbox group now contains crossChainExecution with ERC-7786 documentation and CrosschainRemoteExecutor requirements. The standalone expandable control and its import were removed.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: replacing the empty expandable control with a corrected Governor Cross-Chain Execution control.
Description check	✅ Passed	The description directly explains the defect and the change to a plain checkbox in the Settings group.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@packages/ui/src/solidity/GovernorControls.svelte`:
- Line 158: Update the HelpTooltip link in GovernorControls to point to the
stable official documentation anchor for the relevant GovernorCrosschain API,
replacing the nonexistent GovernorCrosschain anchor while preserving the
existing tooltip.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 23de498b-d83a-4fc7-bf21-fa6b0ba72289

📥 Commits

Reviewing files that changed from the base of the PR and between 3fa2e22 and 7a9e9a3.

📒 Files selected for processing (1)

• packages/ui/src/solidity/GovernorControls.svelte