More Chiseled Bookshelf Variants

1.6.1 (1.21.2, 1.21.3):

• Update to 1.21.2, 1.21.3

1.6.1:

• Fixed the recipes incorrectly using slabs and books as ingredients, they now use planks and slabs just like their vanilla counterpart
• The recipes are now also grouped so that they only take up a combined 1 extra space in the recipe book
• (1.21, 1.21.1) Fixed the chiseled bookshelves not properly dropping themselves when mined

1.6.0:

• Internal code changes to facilitate 1.21.1 version
• (1.21.1) Release

1.5.5:

• Add missing Oak Chiseled Bookshelf recipe

1.5.4:

• Correctly apply Oak prefix to the vanilla Chiseled Bookshelf
• Fix British spellings (en_gb)