Improve layout of groups

web/src/components/Currency.vue

@@ -1,7 +1,11 @@
 <script lang="ts" setup>
 import { computed } from 'vue';
 
-const props = defineProps<{ value: number | undefined }>();
+const props = defineProps<{ 
+    value: number | undefined
+    negativeClass?: string
+    positiveClass?: string
+}>();
 
 const internalValue = computed(() => Number(props.value ?? 0));
 
@@ -11,5 +15,5 @@ const formattedValue = computed(() => internalValue.value.toLocaleString(undefin
 </script>
 
 <template>
-    <span class="text-right" :class="internalValue < 0 ? 'negative' : ''">{{ formattedValue }} €</span>
+    <span class="text-right" :class="internalValue < 0 ? (negativeClass ?? 'negative') : positiveClass">{{ formattedValue }} €</span>
 </template>