Improved plot view

web/src/Canvas.tsx

@@ -12,6 +12,7 @@ import BarV from './widgets/BarV';
 import Led from './widgets/Led';
 import MultiLed from './widgets/MultiLed';
 import SetValue from './widgets/SetValue';
+import Toggle from './widgets/Toggle';
 import Button from './widgets/Button';
 import PlotWidget from './widgets/PlotWidget';
 import ImageWidget from './widgets/ImageWidget';
@@ -31,6 +32,7 @@ const COMPONENTS: Record<string, any> = {
   led:       Led,
   multiled:  MultiLed,
   setvalue:  SetValue,
+  toggle:    Toggle,
   button:    Button,
   plot:      PlotWidget,
   image:     ImageWidget,