refactor: make keyboard dismissable on search bars

src/app/modules/map/page/map-page.html

@@ -27,10 +27,13 @@
     </ion-buttons>
     <ion-searchbar
       (keyup)="searchKeyUp($event)"
+      (keyup.enter)="hideKeyboard()"
       [(ngModel)]="queryText"
       (ionClear)="searchStringChanged()"
       placeholder="{{ 'map.page.search_bar.placeholder' | translate }}"
       showClearButton="always"
+      type="search"
+      enterkeyhint="search"
     >
     </ion-searchbar>
     <ion-buttons slot="end">