Bugfix/unregister chartjs plugin datalabels (#414)

* Unregister chartjs-plugin-datalabels

* Update changelog

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Fixed the broken line charts showing value labels
+
 ## 1.59.0 - 11.10.2021
 
 ### Added

libs/ui/src/lib/portfolio-proportion-chart/portfolio-proportion-chart.component.ts

@@ -75,6 +75,7 @@ export class PortfolioProportionChartComponent
   }
 
   public ngOnDestroy() {
+    Chart.unregister(ChartDataLabels);
     this.chart?.destroy();
   }