Upgraded Foojay and Dokka plugins to newer versions for compatibility and added proper dependency handling for signing tasks in Maven publishing. This ensures the publication process aligns with the updated project configuration.
Removed old database-related implementations (`Database`, `Migrations`, and `Main`) and replaced them with a new focus on MIDI message handling. Updated project metadata, introduced multiplatform `MidiMessage` classes, and added publication/CI setup for Maven compatibility.
