GraphicsSettings - Do not override by default, remember game defaults

[ManlyMarco]

No description provided.

[Copilot]

Pull Request Overview

This PR refactors the GraphicsSettings plugin to not override graphics settings by default and instead remember the game's original settings. The main change shifts from forcing specific graphics values to allowing users to optionally override them while preserving the original game configuration.

• Changed default behavior to preserve game defaults instead of forcing specific values
• Added ability to capture and restore original graphics settings (resolution, display mode, vsync)
• Improved scene change event handling with fallback mechanisms for better compatibility

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

File	Description
GraphicsSettingsIL2CPP_netFm/GraphicsSettings.cs	Updated GUID and implemented new default-preserving graphics settings logic
GraphicsSettingsIL2CPP_net6/GraphicsSettings.cs	Implemented identical default-preserving graphics settings logic for .NET 6 version

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