feat(falukant): enhance child details with other parent information and birth context

- Updated FalukantService to include father and mother character IDs in child relationships.
- Added logic to retrieve and display other parent details in ChildDetailsDialog and FamilyView components.
- Introduced new translations for 'other parent' and 'birth context' in English, German, and Spanish localization files.
- Enhanced UI to show other parent information and birth context in child detail views.

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

@@ -659,6 +659,17 @@
                     "acknowledged_bastard": "Anerkannt unehelich",
                     "hidden_bastard": "Unehelich"
                 },
+                "otherParent": "Anderes Elternteil",
+                "otherParentUnknown": "Unbekannt",
+                "birthContextLabel": "Herkunft",
+                "birthContextShort": {
+                    "marriage": "Ehe",
+                    "lover": "Liebschaft"
+                },
+                "birthContextLong": {
+                    "marriage": "Aus der Ehe",
+                    "lover": "Aus einer Liebschaft"
+                },
                 "details": {
                     "title": "Kind-Details"
                 }