TimedMMOItems

• Fix incorrect Period Date stat description
• Switch to a better configuration system. No change in the config!
• Check out the new documentation here: https://anhcraft.dev/TimedMMOItems/
• Add an option to change date format:

date-format: dd/MM/yyyy

• Fix error when using the extension in Spigot server (Paper server was not affected)
• New Discord support: https://discord.gg/5vpVM6g4SV (Check out anhcraft's plugin support channel)