activate scrolling when neue nachricht dialog is open

goofy-client/libs/ui/src/lib/ui/dialog/dialog.service.ts

@@ -6,20 +6,22 @@ import { FixedDialogComponent } from "@goofy-client/ui";
 import { ConnectionTimeoutRetryDialogComponent } from "../http-error-dialog/connection-timeout-retry-dialog/connection-timeout-retry-dialog.component";
 import { ConnectionTimeoutRetryFailDialogComponent } from "../http-error-dialog/connection-timeout-retry-fail-dialog/connection-timeout-retry-fail-dialog.component";
 import { InternalServerErrorDialogComponent } from "../notification/internal-server-error-dialog/internal-server-error-dialog.component";
+import { NoopScrollStrategy } from '@angular/cdk/overlay';
 
 @Injectable({ providedIn: 'root' })
 export class DialogService {
 
-	readonly FIXED_DIALOG_CONFIG = {
+	readonly FIXED_DIALOG_CONFIG: MatDialogConfig = {
 		width: '520px',
 		position: { bottom: '0', right: '30px' },
 		hasBackdrop: false,
 		panelClass: 'fixed-dialog',
 		disableClose: true,
-		autoFocus: false
+		autoFocus: false,
+		scrollStrategy: new NoopScrollStrategy()
 	};
 
-	readonly SERVER_ERROR_DIALOG_CONFIG = {
+	readonly SERVER_ERROR_DIALOG_CONFIG: MatDialogConfig = {
 		width: '440px',
 		disableClose: true,
 		panelClass: 'notification-dialog'