Replaced bbolt-based database handling with Fyne built-in preferences for storing application settings. Deleted migration logic, database initialization, and error handling related to bbolt, simplifying the codebase and reducing external dependencies.
Introduced a new localized error message "errorDatabaseTimeout" in multiple languages (English, Kazakh, Russian) and updated the `PanicError` method to handle database timeout errors more gracefully. This improves user feedback by providing context-specific error messages.
Implemented functionality to handle single file drag-and-drop in the UI, including error handling for multiple files and directories. Updated localization files to support new messages related to drag-and-drop usage and errors.