Functional changes

• Added support for version 1.21.7
• Added Russian translation (thanks to marat2509)
• Changed message for muted players (remaining penalty time)

mute:
  mute_info_message: "<red>You're trying to speak but you're still muted for {time}</red>"

Technical changes:

• HOTFIX: Tightening the permissions system
  • Fixed a logical error with permission checking
• Improved logic when failing to ban a player
• Added support for version 1.21.7
  • Listener registration based on the appropriate server version for backward compatibility
  • Added methods to check the minimum server version
  • Dropped PlayerLoginEvent usage for servers from 1.21.7
• Added information about support or lack thereof for a given server version