Rename foie gras to faux gras (CleverRaven#55417)

I'll be frank, I saw an opening for a pun and figured it'd be an easy first project. By the old description's own admission, this is technically not foie gras, which I feel opens this up for a possible rename. The description is changed as well since the original seemed somewhat bland. I left the id as is since I doubt the methods of creating realistic foie gras (force feeding ducks through tubes to make their livers enlarge) will ever be implemented.

This was a learning exercise for me in both the game systems and git, thus I won't be too upset if it's denied.

data/json/items/comestibles/offal_dishes.json

@@ -3,10 +3,10 @@
     "id": "foie_gras",
     "type": "COMESTIBLE",
     "comestible_type": "FOOD",
-    "name": { "str_sp": "foie gras" },
+    "name": { "str_sp": "faux gras" },
     "symbol": "%",
     "looks_like": "meat_cooked",
-    "description": "Though it's not technically foie gras, you don't have to think about that.",
+    "description": "Though this meal is technically not foie gras, you have a feeling neither France nor animal rights groups are likely to criticize it either way now.",
     "price_postapoc": 150,
     "material": [ "flesh", "fruit" ],
     "color": "brown",