Fix migration actor's items

Update french compendium to new structure
some minor compendium fix

system/babele/fr/l5r5e.core-signature-scrolls.json

@@ -2,26 +2,32 @@
     "label": "Rouleaux de marque",
     "mapping": {
         "description": "system.description",
-        "book_reference": "system.book_reference"
+        "source_reference": "system.source_reference"
     },
     "entries": [
         {
             "id": "Ichi’s Second Sight",
             "name": "La seconde vision d’Ichi",
             "description": "",
-            "book_reference": "L’Outremonde p.108"
+            "source_reference": {
+                "page": "108"
+            }
         },
         {
             "id": "Hasegawa’s Denial",
             "name": "Le refus d’Hasegawa",
             "description": "",
-            "book_reference": "L’Outremonde p.108"
+            "source_reference": {
+                "page": "108"
+            }
         },
         {
             "id": "Maikara’s Rebuke",
             "name": "La mercuriale de Maikara",
             "description": "",
-            "book_reference": "L’Outremonde p.108"
+            "source_reference": {
+                "page": "108"
+            }
         }
     ]
 }