Adds a Share Extension so users can share URLs from Safari (or any app)
to open the main app with the ImportURLSheet pre-filled. Uses a custom
URL scheme (nextcloud-cookbook://) as the bridge between the extension
and the main app.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Add user-facing appearance setting (System/Light/Dark) wired via
preferredColorScheme at the app root. Replace hardcoded .black tints
and foreground styles with .primary so toolbar buttons and text remain
visible in dark mode. Remove profile picture from settings and
SwiftSoup from acknowledgements.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
