fix(alternative-routes): mismatched open route details

when selecting an alternative route via map or the
button in the route details, the active route would
change but the details would not be expanded.

The panel that should be expanded is now set from the,
activeRouteIndex in the store.

- avoid collapsing again for button in the route details

src/fragments/forms/map-form/components/place-and-directions/components/route-details/RouteDetails.vue

@@ -7,11 +7,11 @@
       <print :map-view-data="mapViewData"></print>
       <h3>{{$t('routeDetails.routeDetails')}}</h3>
     </div>
-    <v-expansion-panel slot="content" class="no-shadow" v-if="hasRoutes" :value="startedPanelExtended">
+    <v-expansion-panel slot="content" class="no-shadow" v-if="hasRoutes" :value="panelExtended">
       <v-expansion-panel-content style="background: transparent;" class="routes-header" :key="routeIndex" v-for="(route, routeIndex) in parsedRoutes">
         <div slot="header">
           <h4 >{{$t('routeDetails.route')}} {{routeIndex + 1}} ({{route.summary.distance}})
-            <v-btn icon @click="changeActiveRouteIndex(routeIndex)" v-if="parsedRoutes.length > 1" :title="routeIndex === $store.getters.activeRouteIndex? $t('routeDetails.selectedRoute') : $t('routeDetails.selectRoute')">
+            <v-btn icon @click.stop="changeActiveRouteIndex(routeIndex)" v-if="parsedRoutes.length > 1" :title="routeIndex === $store.getters.activeRouteIndex? $t('routeDetails.selectedRoute') : $t('routeDetails.selectRoute')">
               <v-icon :color="routeIndex === $store.getters.activeRouteIndex? 'primary' : 'dark' " >done</v-icon>
             </v-btn>
           </h4>

src/fragments/forms/map-form/components/place-and-directions/components/route-details/route-details.js

@@ -46,8 +46,8 @@ export default {
     shareUrl () {
       return location.href
     },
-    startedPanelExtended () {
-      return this.localMapViewData.routes.length > 0 ? 0 : null
+    panelExtended () {
+      return this.localMapViewData.routes.length > 0 ? this.$store.getters.activeRouteIndex : null
     },
     /**
      * Builds and return the routes