Mod_Cycler_v6.5

Changes:

• Fixed cross-game group names leaking between different Mods folders.
• Added per-folder nickname storage.
• Improved automatic group name detection.
• Added GitHub update checking.
• Added self-update support when a release includes a Windows .exe asset.
• Improved duplicate instance handling.
• Reduced EXE size by removing unnecessary bundled dependencies.
• Cleaned up generated INI behavior for duplicate managed groups.