feat: enhance game executable handling and settings management

• Updated LibraryPage to support additional properties for executable paths.
• Added a new button for deleting games in the settings popup.
• Enhanced exe picker modal with search functionality and improved executable ranking.
• Introduced verbose download logging and diagnostics features in SettingsPage + more dev tools.
• Implemented network testing and download cache clearing functionalities.
• Refactored utility functions for better executable path handling and scoring.
• Updated type definitions for better clarity and support for new features.

Full Changelog: v0.7.1...v0.7.2