fix size constraint class issue

src/charts/GpuMemoryChart.tsx

@@ -120,6 +120,7 @@ const GpuMemoryChart: React.FC<IChartProps> = ({
 export class GpuMemoryChartWidget extends ReactWidget {
   constructor(private settingRegistry: ISettingRegistry) {
     super();
+    this.addClass('size-constrained-widgets');
     this.settingRegistry = settingRegistry;
   }
   render(): JSX.Element {

src/charts/GpuUtilizationChart.tsx

@@ -114,6 +114,7 @@ const GpuUtilizationChart: React.FC<IChartProps> = ({
 export class GpuUtilizationChartWidget extends ReactWidget {
   constructor(private settingRegistry: ISettingRegistry) {
     super();
+    this.addClass('size-constrained-widgets');
     this.settingRegistry = settingRegistry;
   }
 

src/charts/NvLinkThroughputChart.tsx

@@ -151,6 +151,7 @@ const NvLinkThroughputChart: React.FC<IChartProps> = ({ settingRegistry }) => {
 export class NvLinkThroughputChartWidget extends ReactWidget {
   constructor(private settingRegistry: ISettingRegistry) {
     super();
+    this.addClass('size-constrained-widgets');
     this.settingRegistry = settingRegistry;
   }
   render(): JSX.Element {

src/charts/NvLinkTimelineChart.tsx

@@ -164,6 +164,7 @@ const NvLinkTimelineChart: React.FC<IChartProps> = ({ settingRegistry }) => {
 export class NvLinkTimelineChartWidget extends ReactWidget {
   constructor(private settingRegistry: ISettingRegistry) {
     super();
+    this.addClass('size-constrained-widgets');
     this.settingRegistry = settingRegistry;
   }
   render(): JSX.Element {

src/charts/PciThroughputChart.tsx

@@ -146,6 +146,7 @@ const PciThroughputChart: React.FC<IChartProps> = ({ settingRegistry }) => {
 export class PciThroughputChartWidget extends ReactWidget {
   constructor(private settingRegistry: ISettingRegistry) {
     super();
+    this.addClass('size-constrained-widgets');
     this.settingRegistry = settingRegistry;
   }
   render(): JSX.Element {

src/launchWidget.tsx

@@ -75,7 +75,6 @@ const Control: React.FC<IControlProps> = ({
       widgetInstance.title.caption = title;
       widgetInstance.title.icon = gpuIcon;
       widgetInstance.id = id;
-      widgetInstance.addClass('size-constrained-widgets');
       app.shell.add(widgetInstance, 'main');
       tracker.add(widgetInstance);
       openWidgets.push({ id, title, instance: widgetInstance });