Merge pull request 'añadida la grasa visceral a la lista de registros' (#2) from mod/add_visceralFat_list into main

Reviewed-on: #2

backend/target/classes/templates/registros.html

@@ -41,7 +41,7 @@
                 <th>% Agua</th>
                 <th>Acciones</th>
               </tr>
-            </thead>
+            </thead> 
             <tbody>
               <tr th:each="r : ${registros}">
                 <td th:text="${#temporals.format(r.date, 'yyyy-MM-dd HH:mm')}">2025-07-10 18:00</td>