3.0.0: Use Magic Mongo & more

• Condense Mongo connection information
• Add pre-built/static embed methods
• Use Magic Mongo
• Added copying for LazyEmbed
• Update Gradle
• Update BotCommands
  • 2.10.2 -> 2.10.3
• Update dependencies
  • JDA: 5.0.0-beta.20 -> 5.0.0-beta.21
  • magic-mongo: 1.0.0 -> 1.1.0
  • postgresql: 42.6.0 -> 42.7.3
  • HikariCP: 5.0.1 -> 5.1.0
  • logback-classic: 1.4.11 -> 1.5.3
• Bump version (3.0.0)
• Add overriding warnings to custom even listeners (event*)

Full Changelog: 2.1.0...3.0.0