Mine Treasure 1.5.3

Updated to 1.21.5, a bunch of internal changes, fixed a few bugs related to announcements. Of course, had to do a ton of changes for it to work for 1.21.5.

Bugfixes

• Fixed a few items lacking custom data, hence they did not trigger advancements.
• Started organzing items in such a way that treasures get it from the same place, making sure they are absolutely identical and stackable.
• Made Nether Potions stackable.
• When you update your name, your stats should now update