Add Writing Desk paper copying and ink meter

src/main/resources/assets/rivencraft/lang/en_us.json

@@ -18,6 +18,7 @@
   "item.rivencraft.ink_vial": "Ink Vial",
   "block.rivencraft.writing_desk": "Writing Desk",
   "container.rivencraft.writing_desk": "Writing Desk",
+  "screen.rivencraft.writing_desk.ink": "Ink: %s/%s",
   "item.rivencraft.ink_vial.remaining": "Ink: %s/%s",
   "item.rivencraft.ink_vial.usage": "Use with a blank Page in the other hand to prepare a Link Panel.",
   "screen.rivencraft.notebook.search": "Search pages",