fix: map search on iOS

Closes #148

src/app/modules/map/page/map-page.component.ts

@@ -406,8 +406,21 @@ export class MapPageComponent {
     this.ref.detectChanges();
   }
 
+  /**
+   * On enter key up do the search
+   *
+   * @param event Keyboard keyup event
+   */
+  searchKeyUp(event: KeyboardEvent) {
+    if (event.key === 'Enter') {
+      this.searchStringChanged((event.target as HTMLInputElement).value);
+    }
+  }
+
   /**
    * Search event of search bar
+   *
+   * @param queryText New query text to be set
    */
   searchStringChanged(queryText?: string) {
     this.queryText = queryText || '';

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

@@ -11,7 +11,7 @@
       <ion-menu-button></ion-menu-button>
     </ion-buttons>
     <ion-searchbar
-      (keyup.enter)="searchStringChanged($event.target.value)"
+      (keyup)="searchKeyUp($event)"
       [(ngModel)]="queryText"
       (ionClear)="searchStringChanged()"
       placeholder="{{ 'map.page.search.PLACEHOLDER' | translate }}"