🎨 Palette: Add accessibility combine to emptyState in ContentView.swift

[acebytes]

💡 What: Added .accessibilityElement(children: .combine) to the emptyState container in ContentView.swift.
🎯 Why: VoiceOver users were hearing the magnifying glass icon and the two text descriptions ("Click Scan to find caches" and "Cacheout will search common developer cache locations") as separate disjointed elements. Grouping them ensures they are read as a single cohesive statement.
📸 Before/After: Visuals remain unchanged.
♿ Accessibility: Empty state view elements are grouped into a single cohesive VoiceOver statement, improving the screen reader experience.

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PR created automatically by Jules for task 771294144240503938 started by @acebytes

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