Release 0.3.1

Added

• Added /api/version endpoint to health module
• Added MSRV (Minimum Supported Rust Version) in Cargo.toml, set to 1.81.0
• Added standard linting configuration
• Added missing documentation

Changed

• Upgraded from axum-sessions to tower-sessions
• Upgraded to Axum 0.7 and Hyper 1.0
• Updated Font Awesome from 6.4.0 -> 6.6.0
• Updated Bulma from 0.9.4 -> 1.0.2
• Adjusted logo/nav CSS for dark mode
• Changed Titlecase configuration fields to lowercase
• Improved utility functions
• Updated crate dependencies