Vue 3 Overview & Detail view same router-link should be active - vue.js

Question

This nav structure is given:
<router-link to="/">Dashboard</router-link>
<router-link to="/travels">Travels</router-link>
...
Travels contains a list with all Travel Locations like so:
<div v-for="travel of travels" :key="travel.id">
<router-link :to="{name: 'Travel.Detail', params:{id:id}}">{travel.label}</router-link>
</div>
Router is working too:
{
path: '/',
name: 'Dashboard',
component: Dashboard
},
{
path: '/travels',
name: 'Travels.Overview',
component: () => import('#/views/projects/TravelsOverview.vue'),
},
{
path: '/travels/:id',
name: 'Travels.Detail',
component: () => import('#/views/projects/TravelsDetail.vue'),
}
A requirement now is that when selecting a travel and showing the TravelsDetail view that the menu item for Travels stays active. As far as i understand children / nested routes like so:
{
path: '/travels',
name: 'Travels.Overview',
component: () => import('#/views/projects/TravelsOverview.vue'),
children:[
{
path: ':id',
name: 'Travels.Detail',
component: () => import('#/views/projects/TravelsDetail.vue'),
}
]
}
Are only working WITHIN the parent view inside another tag and cannot be used to "replace" the parent correct?
So how it is possible to have such a structure with overview & detail views (full views) where in overview and detail view the link item still has the "active" class?

Answer 1

Okey i've found a solution here:
https://forum.vuejs.org/t/router-active-class-on-submenu-parent/7027
<router-link to="/travels" custom v-slot="{ href, navigate, isActive, isExactActive }">
<li :class="{ 'uk-active active': isActive || isExactActive || subIsActive('/travels') }">
<a :href="href" #click="navigate"><span>Travels</span></a>
</li>
</router-link>
And in the method:
subIsActive(input) {
const paths = Array.isArray(input) ? input : [input]
return paths.some(path => {
return this.$route.path.indexOf(path) === 0 // current path starts with this path string
})
}
Now every route that starts with /travels adds the active classes to the router-link item.