Major update

[talkafk]

Added

• Windows module — new addons/gamepush/modules/Windows.gd for confirmation overlay functionality and window management features.
• Sounds module — new addons/gamepush/modules/Sounds.gd for managment audio and sounds.

Updated

• Module naming convention — renamed all module properties from PascalCase to snake_case for Godot 4.5+ compatibility (e.g., GP.Achievements → GP.achievements, GP.Leaderboard → GP.leaderboard).
• Class name prefixing — classes now use GP prefix to avoid conflicts with common class names (e.g. Player → GPPlayer).
• Logging — in the logger module, the methods info(), warn(), err() now accept any number of arguments.
• Demo — updated demo scene with new features.

Fixed

• Yandex Leaderboard integration — corrected set_yandex_lb_score() method in Leaderboard module.