Stylua

[autonordev]

This pull request:

• adds Stylua via Aftman
• pins it to the default configuration
• automatically updates existing files to use said configuration

Using Stylua will:

• eliminate style bikeshedding in code reviews
• improve code readability
• stop developers from needing to worry about styling
• make it easier for new contributors to get involved, since formatting is standardised and automatic

[LegitimatelyRyan]

lgtm