Add translations

public/locales/en/common.json

@@ -384,6 +384,7 @@
   "extra_weapons": "Additional Weapons",
   "equipped": "Equipped",
   "coming_soon": "Coming Soon",
+  "new_party": "New party",
   "no_accessory": "No {{accessory}} equipped",
   "no_title": "Untitled",
   "no_raid": "No raid",

public/locales/ja/common.json

@@ -385,6 +385,7 @@
   "equipped": "装備した",
   "extra_weapons": "Additional Weapons",
   "coming_soon": "開発中",
+  "new_party": "新しい編成",
   "no_accessory": "{{accessory}}は装備していません",
   "no_title": "無題",
   "no_raid": "マルチなし",