Renk 1.1

• Player colors are now stored in a player_colors.json file for easier management.
• Added /renk reset to remove your color and /renk reset <player> (admin only).
• Added renk.reset.other for admin control.
• All messages are now configurable in the config.yml file.
• Removed SQLite dependency.

Note: This update requires deleting the old user_colors.db file.