message: Fix highlighting number of online mods in NavigationMenu
  The span showing number of available mods had the same background color
  as the parent element when user navigated to download moniton view.
diff: <router-link :to="{name: 'manager.installed'}" class="tagged-link">
  <i class="fas fa-folder tagged-link__icon icon--margin-right" />
  <span class="tagged-link__content">Installed</span>
  - <span :class="getTagLinkClasses('manager.installed')">{{localModList.length}}</span>
  + <span :class="getTagLinkClasses(['manager.installed'])">{{localModList.length}}</span>
  </router-link>
  </li>
  <li>
  <router-link :to="{name: 'downloads'}" class="margin-right--half-width">
  <i class="tag fas fa-download is-primary" />
  </router-link>
  - <span :class="getTagLinkClasses('manager.online')">{{thunderstoreModList.length}}</span>
  + <span :class="getTagLinkClasses(['manager.online', 'downloads'])">{{thunderstoreModList.length}}</span>
  </router-link>
  </li>
  </ul>
  @@ -90,9 +90,9 @@ export default class NavigationMenu extends Vue {
  return this.$store.state.localModList || [];
  }
  - getTagLinkClasses(routeName: string) {
  + getTagLinkClasses(routeNames: string[]) {
  const base = ["tag", "tagged-link__tag"];
  - return this.$route.name === routeName ? base : [...base, "is-link"];
  + return routeNames.includes(this.$route.name || "") ? base : [...base, "is-link"];
  }
  async launch(mode: LaunchMode) {
  