Add localization for marriage gift, lover maintenance, and household order: Update German, English, and Spanish translation files to include new terms related to marriage and household management. Enhance MoneyHistoryView to improve activity translation handling with additional candidate formats.

frontend/src/views/falukant/MoneyHistoryView.vue

@@ -95,17 +95,31 @@ export default {
       }
     },
     translateActivity(activity) {
-      // Handle nested keys like "health.pill" -> "health.pill"
-      const key = `falukant.moneyHistory.activities.${activity}`;
-      const translation = this.$t(key);
-      // If translation is the same as key, try nested structure
-      if (translation === key && activity.includes('.')) {
-        const parts = activity.split('.');
-        const nestedKey = `falukant.moneyHistory.activities.${parts[0]}.${parts[1]}`;
-        const nestedTranslation = this.$t(nestedKey);
-        return nestedTranslation !== nestedKey ? nestedTranslation : activity;
+      const candidates = [activity];
+
+      if (typeof activity === 'string') {
+        candidates.push(activity.replaceAll('_', ' '));
+        candidates.push(activity.replaceAll(' ', '_'));
       }
-      return translation !== key ? translation : activity;
+
+      for (const candidate of candidates) {
+        const key = `falukant.moneyHistory.activities.${candidate}`;
+        const translation = this.$t(key);
+        if (translation !== key) {
+          return translation;
+        }
+
+        if (candidate.includes('.')) {
+          const parts = candidate.split('.');
+          const nestedKey = `falukant.moneyHistory.activities.${parts[0]}.${parts[1]}`;
+          const nestedTranslation = this.$t(nestedKey);
+          if (nestedTranslation !== nestedKey) {
+            return nestedTranslation;
+          }
+        }
+      }
+
+      return activity;
     },
     openGraphDialog() {
       this.$refs.graphDialog.open();
@@ -150,4 +164,4 @@ h2 {
   overflow: auto;
   height: 100%;
 }
-</style>
+</style>