se soluciono un problema de vulnerabilidad en la cookie de session

src/main/frontend/themes/sistema-mantenimiento/styles.css

@@ -24,6 +24,11 @@
 .drawer-logo {
     width: 300px;
 }
+
+vaadin-grid::part(selected-row-cell) {
+    background-color: #a02142;
+    color: white;
+}
 /* ------------------ FIN -------------------------------------- */
 /*
 /*

src/main/resources/application.properties

@@ -1,6 +1,7 @@
 server.port=${PORT:8080}
 logging.level.org.atmosphere = warn
 spring.profiles.active=dev
+server.servlet.session.cookie.secure=true
 
 # Launch the default browser when starting the application in development mode
 vaadin.launch-browser=true