fix(angular): nested tabs now go to correct page (ionic-team#23902)

resolves ionic-team#23897

Author: liamdebeasi

angular/src/directives/navigation/ion-tabs.ts

@@ -86,10 +86,20 @@ export class IonTabs {
    *   b. If the last route view doesn't exist, then navigate
    *      to the default tabRootUrl
    */
-  @HostListener('ionTabButtonClick', ['$event.detail.tab'])
-  select(tab: string) {
+  @HostListener('ionTabButtonClick', ['$event'])
+  select(ev: CustomEvent) {
+    const tab = ev.detail.tab;
     const alreadySelected = this.outlet.getActiveStackId() === tab;
     const tabRootUrl = `${this.outlet.tabsPrefix}/${tab}`;
+
+    /**
+     * If this is a nested tab, prevent the event
+     * from bubbling otherwise the outer tabs
+     * will respond to this event too, causing
+     * the app to get directed to the wrong place.
+     */
+    ev.stopPropagation();
+
     if (alreadySelected) {
       const activeStackId = this.outlet.getActiveStackId();
       const activeView = this.outlet.getLastRouteView(activeStackId);