Update active menu item when watching the changes

Here is the example code.

```

export default {
data() {
return {
activeMenu: 'component-a',
};
},
watch: {
$route(to, from) {
this.activeMenu = to.name || 'component-a';
},
},
};

```

The issue shows a Vue component with a menu that should update its active item based on route changes. The watch on $route is already present. Look for the component file in the repository, likely in a src/components or src/views directory. Check if the route names match the menu item keys. Verify the component works by running the app and navigating. The fix may involve ensuring the route name is correctly set or adjusting the key mapping.

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