Fix NVIDIA driver crash on shutdown

[seer-by-sentry]

Fixes CLIENT-27D. The issue was that: GPU driver's destroyFinalizer crashes due to integer division by zero from unsynchronized resource release during game shutdown.

• Added a 50ms delay after releasing vertex and index buffers during shutdown.
• This delay allows the GPU to complete pending operations.
• Mitigates race conditions where the NVIDIA driver's cleanup code might access freed resources.
• Prevents division by zero errors in GPU state calculations during shutdown.

This fix was generated by Seer in Sentry, triggered automatically. 👁️ Run ID: 8431908

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