corrected components

SurveyFrontend/src/components/NavigationItem/NavigationItem.module.css

@@ -9,7 +9,7 @@
 
 .active{
     text-decoration: underline 2px #556FB7;
-    color: #000000;;
+    color: #000000;
 }
 
 .navItem:last-child{

SurveyFrontend/src/components/NavigationItem/NavigationItem.tsx

@@ -10,9 +10,9 @@ interface NavigationItemProps{
 const NavigationItem: React.FC<NavigationItemProps> = ({title, onClick, isActive}) => {
     return (
         <li className={styles.navItem}>
-            <a className={`${styles.page} ${isActive ? styles.active : ''}`} onClick={onClick}>
+            <button className={`${styles.page} ${isActive ? styles.active : ''}`} onClick={onClick}>
                 {title}
-            </a>
+            </button>
         </li>
     );
 };