Estimated row heights to provide better scroll UX.

Closes #1381

Signed-off-by: Akos Kitta <[email protected]>

Author: Akos Kitta

Diff for: arduino-ide-extension/src/browser/widgets/component-list/component-list.tsx

@@ -44,7 +44,7 @@ export class ComponentList<T extends ArduinoComponent> extends React.Component<
   constructor(props: ComponentList.Props<T>) {
     super(props);
     this.cache = new CellMeasurerCache({
-      defaultHeight: 300,
+      defaultHeight: 150,
       fixedWidth: true,
     });
   }
@@ -68,6 +68,7 @@ export class ComponentList<T extends ArduinoComponent> extends React.Component<
               rowHeight={this.cache.rowHeight}
               deferredMeasurementCache={this.cache}
               ref={this.setListRef}
+              estimatedRowSize={150}
             />
           );
         }}