remove unused imports; reorder methods

goofy-client/libs/vorgang/src/lib/vorgang-list-container/vorgang-list/vorgang-list.component.ts

-import { CdkVirtualScrollViewport } from '@angular/cdk/scrolling';
-import { Component, EventEmitter, HostListener, Input, Output, ViewChild } from '@angular/core';
+import { Component, EventEmitter, HostListener, Input, Output } from '@angular/core';
 import { StateResource } from '@goofy-client/tech-shared';
 import { VorgangListResource, VorgangResource } from '@goofy-client/vorgang-shared';
 
@@ -17,12 +16,6 @@ export class VorgangListComponent {
 
 	@Output() private nextPage: EventEmitter<void> = new EventEmitter<void>();
 
-	nextBatch(): void {
-		if (this.shouldLoadNextPage()) {
-			this.nextPage.emit();
-		}
-	}
-
 	@HostListener('window:scroll', ['$event'])
 	onWindowScroll(event) {
 		try {
@@ -36,6 +29,12 @@ export class VorgangListComponent {
 		} catch (error) { }
 	}
 
+	private nextBatch(): void {
+		if (this.shouldLoadNextPage()) {
+			this.nextPage.emit();
+		}
+	}
+
 	private shouldLoadNextPage(): boolean {
 		return !this.vorgangListPageResource.loading && this.hasNextPage;
 	}