Update Fetchur Emerald dialogue (#21)

```
[NPC] Fetchur: theyre green and some dudes trade stuff for it
Skytils » Skytils couldn't determine the Fetchur item. There were 13 solutions loaded.
[NPC] Fetchur: i need 50 pls
```

solvers/fetchur.json

@@ -9,7 +9,7 @@
   "its explosive but more than usual": "1 Superboom TNT",
   "its wearable and grows": "1 Pumpkin",
   "its shiny and makes sparks": "1 Flint and Steel",
-  "theyre its green and some dudes trade stuff for it": "50 Emeralds",
+  "theyre green and some dudes trade stuff for it": "50 Emeralds",
   "theyre round and green, or purple": "16 Ender Pearls",
   "theyre red and soft": "50 Red Wool"
 }