Slideflow v0.5.0

Slideflow gets a new look. Every surface of the app was rebuilt to the new Slideflow design system — same features, a cleaner and more consistent interface, plus a handful of new comfort settings that landed along the way.

🎨 App-wide redesign

• Chrome & grid — a tidier toolbar (density → group → sort, hidden on views where it doesn't apply), Decks above Saved searches in the sidebar, tighter grid spacing with compact per-deck headers.
• Inspector — clearer title/metadata hierarchy, a dashed Add tag pill, richer notes, and side-by-side Favourite / Reveal actions.
• Statistics — value-first overview tiles and an activity grid with a recent-searches chip cloud.
• Duplicates — plainer group headers with similarity pills and a clearer Newest badge.
• Overlays — context menus with icons and keyboard hints, a leaner command palette, a redesigned peek (preview on top, inline notes, in-frame navigation), a restructured export sheet with a filename preview, and a refreshed About dialog.
• Settings — rebuilt as a two-pane layout: Appearance, Library, Fonts, AI search (with an explicit on-device note), and Updates (ready-to-install banner, last-checked / check-now footer).
• Zero results — now offers guidance and a one-click Re-index folders.

✨ New along the way

• Theme toggle in the header — switch light/dark without opening Settings; Settings → Appearance keeps the full light/dark/system control.
• Reduce motion — a new Appearance preference that disables UI animations (respected by slide peek and tile transitions).
• The approximate-preview badge can now be hidden via Settings → Appearance.
• Command palette gains Add selection to tray, New tray, and Show statistics.

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Full changelog: CHANGELOG.md