Inconsistency: Decorated pot items use entity/decorated_pot/decorated_pot_side for particles, but blocks do not

Relates to MC-276565 and MC-276733.

The bug

The blocks atlas explicitly includes the decorated pot side texture.

        {
            "type": "single",
            "resource": "entity/decorated_pot/decorated_pot_side"
        },

This texture is used for the item form of decorated pots, but not the block form, which instead uses the terracotta texture for its particles.

How to reproduce

A resource pack that excludes this texture from the atlas is included. Applying this will cause the particles for decorated pot items to become missing, but not decorated pot blocks, making this inconsistency more obvious

How to fix

Either remove the line that adds this texture to the atlas from the blocks atlas json file and repoint decorated pot items to the terracotta texture, or make decorated pot blocks use the texture for particles.