Translate categories to English

[clemsos]

Still some elements in French in the model

ludobox/model/game.json

Lines 40 to 47 in 678f2f4

	"enum" : [
	"Loisir",
	"Militant",
	"Pédagogique",
	"Publicitaire",
	"Institutionel",
	"Experimental"
	],

ludobox/model/game.json

Lines 83 to 105 in 678f2f4

	"enum" : [
	"Jeux de rôle",
	"Identité secrete",
	"Bluff",
	"Stop ou encore",
	"Gestion",
	"Enchères",
	"Programmation",
	"Abstrait",
	"Parcours",
	"Hasard",
	"Construction",
	"Dexterité",
	"Narratif",
	"Rapidite",
	"Enquetes",
	"Enigme",
	"Traditionel",
	"Wargame",
	"Placement"
	]
	},
	"id": "mechanics",