- Updated /strengthinfo to be up to date

This is mostly to show activity to avoid de-activation of the plugin.
The plugin is considered "complete" so no new features will be added.
Only bug fixes will be fixed (when discovered).

This works on the latest version (1.21), for any issues, join the support discord.

Changelog
- Strength after revival is now -3 instead of 0 (to avoid the "dupe" glitch)
- Right-clicking the dragon egg uses it and resets everyone's strength back to 0, along with reviving everyone who died

Updated to the latest version used on the official StrengthSMP plugin