[KNOWAGE-7085] Changed menu z-index to over 9000

knowage-vue/src/modules/mainMenu/MainMenu.vue

@@ -327,7 +327,7 @@ export default defineComponent({
     padding: 0 0 18px 0;
 }
 .layout-menu-container {
-    z-index: 8000;
+    z-index: 9000;
     width: var(--kn-mainmenu-width);
     top: 0;
     background-color: var(--kn-mainmenu-background-color);