This commit implements a new Storage settings view that displays storage
usage statistics for NostrDB, snapshot database, and Kingfisher image cache.
Key features:
- Interactive pie chart visualization (iOS 17+) with tap-to-select functionality
- Pull-to-refresh gesture to recalculate storage
- Categorized list showing each storage type with size and percentage
- Total storage sum displayed at bottom
- Conditional compilation for iOS 16/17+ compatibility
- All calculations run on background thread to avoid blocking main thread
- NostrDB storage breakdown
Changelog-Added: Storage usage statistics view in Settings
Changelog-Changed: Moved clear cache button to storage settings
Closes: https://github.com/damus-io/damus/issues/3649
Signed-off-by: Daniel D’Aquino <daniel@daquino.me>
795fce1b65