feat: replace custom discount with absolute value in favor of percentage

templates/groups/offer/_summary.html.twig

@@ -164,7 +164,7 @@
                     {% endif %}
                     {% if ctx.priceBreakdown.totalDiscountDetails is not null %}
                         <tr class="text-green-700">
-                            <td class="p-2">{{ ctx.priceBreakdown.totalDiscountDetails.label }} {{ ctx.priceBreakdown.totalDiscountDetails.percent }}&nbsp;%</td>
+                            <td class="p-2">{{ ctx.priceBreakdown.totalDiscountDetails.label }}</td>
                             <td class="p-2 text-right whitespace-nowrap">– {{ (ctx.priceBreakdown.totalDiscountDetails.amount / 100)|format_currency(currency) }}</td>
                         </tr>
                     {% endif %}