Version 2.15.14

New Features:
• update database schema to version 17 with credit card support
• enhance account management with credit card support
• implement in-app review functionality for Google Play and F-Droid
• enhance in-app update functionality with Snackbar support
• enhance sender matching logic to include additional variations

Bug Fixes:
• update light theme background color to pure white for consistency
• update splash screen background color to black for improved visibility in dark mode
