fix: empty toast group pads a 20px gap above the widget header

[omridevk]

The notifications region added in #485 reserves a padded strip above the header even with zero toasts.

Root cause: zag sets inline display: flex on the toast group, and inline style beats the empty:hidden class rule — so the empty group always renders, and its p-2.5 is the visible 20px gap.

Fix: the padding is conditional (empty:p-0) instead of fighting the inline display. The dead empty:hidden is removed.

Test: new browser test pins the behaviour — the Notifications region is not visible while empty, becomes visible with a notice, and collapses again after dismissal. RED before the fix (failed at the first not.toBeVisible), 144/144 after.

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📥 Commits

Reviewing files that changed from the base of the PR and between c6330c2 and 895f978.

📒 Files selected for processing (3)

• .changeset/toast-group-empty-gap.md
• apps/conciv/src/shell/notices.tsx
• apps/conciv/test/notices.browser.test.tsx

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[Copilot]

Pull request overview

Removes the empty toast group’s padding so it no longer creates a gap above the widget header.

Changes:

• Applies zero padding when the toast group is empty.
• Adds browser coverage for showing and collapsing the notifications region.
• Adds a patch changeset.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
apps/conciv/src/shell/notices.tsx	Conditionally removes empty-group padding.
apps/conciv/test/notices.browser.test.tsx	Tests the notification region lifecycle.
.changeset/toast-group-empty-gap.md	Documents the patch release.

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