refractored code to follow DRY

apps/client/src/app/pages/portfolio/activities/import-activities-dialog/import-activities-dialog.component.ts

@@ -289,10 +289,6 @@ export class ImportActivitiesDialog implements OnDestroy {
             this.activities = activities;
             this.dataSource = new MatTableDataSource(activities.reverse());
             this.totalItems = activities.length;
-
-            this.selectedActivities = [...activities];
-            this.changeDetectorRef.markForCheck();
-            stepper.next();
           } catch (error) {
             console.error(error);
             this.handleImportError({ error, activities: content.activities });
@@ -311,10 +307,6 @@ export class ImportActivitiesDialog implements OnDestroy {
             this.activities = data.activities;
             this.dataSource = new MatTableDataSource(data.activities.reverse());
             this.totalItems = data.activities.length;
-
-            this.selectedActivities = [...data.activities];
-            this.changeDetectorRef.markForCheck();
-            stepper.next();
           } catch (error) {
             console.error(error);
             this.handleImportError({
@@ -340,7 +332,7 @@ export class ImportActivitiesDialog implements OnDestroy {
         this.snackBar.dismiss();
 
         stepper.next();
-
+        this.updateSelection(this.activities);
         this.changeDetectorRef.markForCheck();
       }
     };