fix(components): remove extra popover padding for DialogTrigger with menu/listbox

[cpurps22]

Summary

When a Menu or ListBox is rendered inside a DialogTrigger popover, the popover's 8px padding (--lp-spacing-300) stacks on top of the menu's own 4px container padding (--lp-spacing-200), resulting in 12px of container padding instead of the expected 4px. This creates visually inconsistent menus compared to those rendered via MenuTrigger (which has no popover padding).

This change splits the DialogTrigger padding rule into two selectors:

1. &[data-trigger='DialogTrigger']:not(:has([role='menu'], [role='listbox'])) — preserves padding for non-menu dialog content
2. &[data-trigger='DialogTrigger']:has(input[type='search']) — re-adds padding when a search input is present (e.g. autocomplete/combobox patterns inside a DialogTrigger)

Plain menus/listboxes inside a DialogTrigger popover no longer receive the extra popover padding, while search-containing popovers retain it.

Human review checklist

• Verify selector precedence: when both selectors could apply (a DialogTrigger popover with a listbox AND a search input), confirm the search selector wins and padding is applied. Since both are comma-separated in the same rule, either matching should apply the padding — but worth verifying in a real component.
• Confirm no existing DialogTrigger popovers with mixed content (dialog elements alongside a menu, no search) are negatively impacted
• Review Chromatic visual diffs to validate the padding change looks correct across all affected stories
• A follow-up change in consumer repos (e.g. gonfalon) to use MenuTrigger instead of DialogTrigger for pure menu popovers would be the more architecturally correct long-term fix

Testing approaches

• Visual regression via Chromatic CI
• Manual verification: open any DialogTrigger popover containing a Menu and confirm padding matches a standard MenuTrigger menu (4px container padding, no extra outer padding from the popover)
• Manual verification: open a DialogTrigger popover containing a search input + listbox and confirm padding is still present around the search field

Link to Devin session: https://app.devin.ai/sessions/e83a67884e96414b8f6b288b8c045e6d
Requested by: @cpurps22

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🦋 Changeset detected

Latest commit: d00e544

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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@launchpad-ui/components	Patch

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commit: d00e544