Launcher enhancements

[alex73630]

This pull request introduces a new "Peacock Options" screen to the launcher, enabling users to view and modify Peacock-specific configuration options through the UI. It also refactors the backup and restore logic for Peacock installations to be more robust and comprehensive. The most important changes are as follows:

Peacock Options UI Integration:

• Added a new Options screen and menu entry, allowing users to access and edit Peacock options from within the launcher (launcher/src/app.rs, launcher/src/main.rs, launcher/src/ui/main_menu.rs). [1] [2] [3] [4] [5] [6]
• Introduced state management for the options screen in the App struct, including currently loaded options, selection index, and messages (launcher/src/app.rs). [1] [2] [3]

Peacock Options Core Logic:

• Added a new options module that defines all known Peacock options, their metadata, and logic for loading/saving options from/to an options.ini file. This includes support for boolean and enum options, cycling values, and preserving unknown options and comments (launcher/src/core/options.rs, launcher/src/core/mod.rs). [1] [2]

Peacock Install/Update Improvements:

• Refactored the Peacock install/update process to back up all relevant user data (including userdata, plugins, logs, contracts, contractSessions, and options.ini) into a single backup directory, and restore them after updating. This approach is more comprehensive and less error-prone than the previous method (launcher/src/core/peacock.rs). [1] [2]

Miscellaneous:

• Marked unused directory helper functions in Config as #[allow(dead_code)] to suppress warnings (launcher/src/core/config.rs).

These changes together greatly improve the configurability and robustness of the Peacock integration in the launcher.