MOBILE-3833 core: Clean up swipe managers

src/addons/calendar/components/calendar/calendar.ts

@@ -324,6 +324,7 @@ export class AddonCalendarCalendarComponent implements OnInit, DoCheck, OnDestro
      */
     ngOnDestroy(): void {
         this.undeleteEventObserver?.off();
+        this.manager?.destroy();
         this.managerUnsubscribe && this.managerUnsubscribe();
     }
 

src/addons/calendar/pages/day/day.page.ts

@@ -452,6 +452,7 @@ export class AddonCalendarDayPage implements OnInit, OnDestroy {
         this.manualSyncObserver?.off();
         this.onlineObserver?.unsubscribe();
         this.filterChangedObserver?.off();
+        this.manager?.destroy();
         this.managerUnsubscribe && this.managerUnsubscribe();
     }
 

src/addons/mod/book/pages/contents/contents.ts

@@ -315,6 +315,7 @@ export class AddonModBookContentsPage implements OnInit, OnDestroy {
      */
     ngOnDestroy(): void {
         this.managerUnsubscribe && this.managerUnsubscribe();
+        this.manager?.destroy();
     }
 
 }