Release 6.0.0 for 1.16.2-1.21

What's New?

• Reverted to using JeffLib to get biomes and initialise placeholders,
• meaning the plugin now supports all versions once again, from 1.16.2 to 1.21
• The plugin will now notify the user that it uses bstats and that it can be disabled in the config
• FIX backported fix for #2 from 5.0.0 to 1.20.1 and below [JeffLib]
• [Technical] Removed redundant code
• [Technical] Plugin now checks messages in config for missing format specifiers.
• [Technical] Rewrote string manipulation with string builder...
• ...which now replaces periods (.) with spaces (period is a valid character in Minecraft resource keys)