Texture feedback for 21w08a

I was once again blown away by the artistic skill of the texture developers at Mojang Studios, however I had a couple of small nitpicks: Copper ore looks way too oxidized compared to how pristine the ingot smelted from it looks. The Deepslate texture and the cobbled Deepslate texture look way too similar, to the point where it becomes easy to confuse them in the inventory. A solution to this issue could be to have the top texture of Deepslate be applied to all sides of the block.