NClientV3 4.2.0-release

- Refreshed the interface across the whole app for a cleaner, more consistent Material 3 look - Reworked the login screen and sign-in flow - Fixed viewing comments on galleries - Reworked and fixed posting comments - Delete your own comments from a gallery - Open comments from a button on the gallery page - Choose your nhentai source or mirror in Settings - Disguise the app icon as a Calculator, Clock, or Notes - Hide content in recents now also blocks screenshots app-wide - Share a link or text