Install ViGEmBus before starting Sunshine

[cgutman]

Description

Since #1948, we display a fatal log message in the UI if ViGEmBus is unavailable. This is good to help users debug their gamepad issues, but it incorrectly triggers on a clean system when Sunshine is first installed. The problem is that we are starting Sunshine before we install ViGEmBus, so the first initialization happens without ViGEmBus and triggers the warning. Switching the order of operations in the installer should avoid the warning.

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

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