Adds languages, Fixes bugs

• Adds Czech, Portuguese and Ukrainian translations
• Retries the transfers interrupted by a server error or an invalid response
• Fixes the migration of data stored by version 3.2 and earlier
• Corrects the number of photos presented in album footers
• Invites to update Piwigo servers older than version 16
• Hides the trash button when there are no JSON files to delete in logs
• Explains that logs cover the last 24 hours and localizes None
• Fixes crashes and improves the interface

What's Changed

• Updates fastlane by @EddyLB in #665
• Version 4.4.2 by @EddyLB in #667

Full Changelog: v4.4.1...v4.4.2