Refactor MessagesDialog component to improve parameter interpolation and description formatting

- Enhanced the description formatting logic to ensure proper interpolation of parameters in both title and description fields.
- Updated the handling of monetary values to ensure they are correctly converted to numbers before formatting.
- Improved comments for clarity on the interpolation process and effects handling.

frontend/src/components/falukant/MessagesDialog.vue

@@ -172,9 +172,12 @@ export default {
       if (value && value.title && value.description) {
         // Parameter aus effects extrahieren und formatieren
         const formattedParams = this.formatParams(params);
+        // Zuerst Description interpolieren (für {amount} etc.), dann Effects hinzufügen
+        let description = this.interpolateString(value.description, formattedParams);
+        description = this.formatDescriptionWithEffects(description, value.effects || [], formattedParams);
         return {
           title: this.interpolateString(value.title, formattedParams),
-          description: this.formatDescriptionWithEffects(value.description, value.effects || [], formattedParams)
+          description: description
         };
       }
 
@@ -212,6 +215,10 @@ export default {
             const title = this.$t(titleKey, formattedParams);
             let description = this.$t(descKey, formattedParams);
             
+            // Stelle sicher, dass auch hier die Parameter interpoliert werden (für {amount} etc.)
+            // Vue i18n interpoliert bereits, aber wir müssen sicherstellen, dass formatParams korrekt formatiert
+            description = this.interpolateString(description, formattedParams);
+            
             // Füge Effect-Details hinzu, falls vorhanden
             if (value && value.effects) {
               description = this.formatDescriptionWithEffects(description, value.effects, formattedParams);
@@ -234,10 +241,10 @@ export default {
       
       // Geldbeträge formatieren
       if (params.amount !== undefined && params.amount !== null) {
-        formatted.amount = this.formatMoney(params.amount);
+        formatted.amount = this.formatMoney(Number(params.amount));
       }
       if (params.absolute !== undefined && params.absolute !== null) {
-        formatted.amount = this.formatMoney(params.absolute);
+        formatted.amount = this.formatMoney(Number(params.absolute));
       }
       if (params.percent !== undefined && params.percent !== null) {
         formatted.percent = `${params.percent > 0 ? '+' : ''}${params.percent.toFixed(1)}%`;