feat(falukant): add scandalExtraDailyPct field and update related components

- Introduced a new field `scandalExtraDailyPct` in the relationship state model to track additional scandal risk per day, with validation constraints.
- Updated the FalukantService to include the new field in relevant calculations and data handling.
- Enhanced the frontend components, including RevenueSection and FamilyView, to display the scandal risk information and updated price calculations.
- Added localization entries for the new field in multiple languages to ensure clarity for users.

frontend/src/i18n/locales/en/falukant.json

@@ -907,6 +907,7 @@
                 "visibility": "Visibility",
                 "discretion": "Discretion",
                 "maintenance": "Maintenance",
+                "scandalExtraDailyPct": "Extra scandal risk/day",
                 "monthlyCost": "Monthly Cost",
                 "politicalFreeSlotsHint": "Political offices grant you {count} affair slot(s) with no monthly upkeep (cheapest relationships count first).",
                 "politicalFreeMaintenance": "Office (free)",