Add family roles to member management

public/locales/ja.json

@@ -624,6 +624,17 @@
     "displayNameLabel": "表示名",
     "memberPasswordLabel": "パスワード",
     "colorLabel": "色",
+    "familyRoleLabel": "家族内の役割",
+    "familyRoleDad": "父",
+    "familyRoleMom": "母",
+    "familyRoleParent": "保護者",
+    "familyRoleChild": "子ども",
+    "familyRoleGrandparent": "祖父母",
+    "familyRoleRelative": "親族",
+    "familyRoleOther": "家族メンバー",
+    "systemAdminLabel": "システム管理者",
+    "systemAdminHint": "システム管理者は設定、連携、APIトークン、家族アカウントを管理できます。",
+    "systemAdminBadge": "システム管理者",
     "roleLabel": "役割",
     "roleMember": "メンバー",
     "roleAdmin": "管理者",