fix(bundle): even out spacing around the settings separator

[makhnatkin]

Fix settings separator spacing

• Removed extra spacing around the preview button.
• Hidden the separator when no settings are available.
• Updated affected visual snapshots.
• Stabilized the empty code block screenshot check.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

The PR fixes settings-toolbar alignment by removing a leftover preview-button margin and prevents an orphaned divider by using the same visibility condition as the settings button. Toolbar screenshots will need regeneration; settings-panel snapshots are unaffected.

File-Level Changes

Change	Details	Files
Remove the obsolete preview-button margin so the toolbar divider has symmetric spacing.	Delete the 2px horizontal margin override from the preview button styles.	packages/editor/src/bundle/settings/index.scss
Align divider rendering with the condition that controls the settings button.	Render the separator using areSettingsVisible instead of the truthiness of settingsVisible.	packages/editor/src/bundle/settings/index.tsx

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[gravity-ui]

[gravity-ui]

[sourcery-ai]

Hey - I've reviewed your changes and they look great!

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