Ajout du champ "shortname" sur les collections

collection/games/fixtures/initial.yaml

@@ -2,43 +2,54 @@
   pk: 1
   fields:
     name: Steam
+    shortname: Steam
 - model: games.platform
   pk: 2
   fields:
     name: Game Boy
+    shortname: Game Boy
 - model: games.platform
   pk: 3
   fields:
     name: Nintendo 3DS
+    shortname: 3DS
 - model: games.platform
   pk: 4
   fields:
     name: Nintendo Switch
+    shortname: Switch
 - model: games.platform
   pk: 5
   fields:
     name: PC
+    shortname: PC
 - model: games.platform
   pk: 6
   fields:
     name: Genesis / Mega Drive
+    shortname: GEN
 - model: games.platform
   pk: 7
   fields:
     name: Nintendo Entertainment System
+    shortname: NES
 - model: games.platform
   pk: 8
   fields:
     name: PlayStation
+    shortname: PS
 - model: games.platform
   pk: 9
   fields:
     name: PlayStation 3
+    shortname: PS3
 - model: games.platform
   pk: 10
   fields:
     name: PlayStation 4
+    shortname: PS4
 - model: games.platform
   pk: 11
   fields:
     name: Wii
+    shortname: Wii