message: Fix demo app warnings
diff: @@ -12,6 +12,8 @@ import {
  const themes = [jobStreet, seekAnz];
  const themeNames = Object.keys(themes);
  +const noop = () => {};
  +
  export default class App extends Component {
  constructor() {
  super();
  @@ -50,23 +52,40 @@ export default class App extends Component {
  </Alert>
  <Box paddingLeft="gutter" paddingRight="gutter">
  <Checkbox
  + id="1"
  label="I agree to the terms and conditions"
  tone="critical"
  message="You must agree to continue"
  + checked={false}
  + onChange={noop}
  />
  </Box>
  <ChecklistCard borderWidth="standard" marginTop="large">
  - <Checkbox label="Hello world" message={false} checked>
  + <Checkbox
  + id="2"
  + label="Hello world"
  + message={false}
  + checked
  + onChange={noop}
  + >
  <Text>Hello!</Text>
  </Checkbox>
  <Checkbox
  label="Hello world"
  message="Oops, something went wrong!"
  tone="critical"
  + checked={false}
  + onChange={noop}
  >
  <Text>Hello!</Text>
  </Checkbox>
  - <Checkbox label="Hello world" message={false}>
  + <Checkbox
  + id="3"
  + label="Hello world"
  + message={false}
  + checked={false}
  + onChange={noop}
  + >
  <Text>Hello!</Text>
  </Checkbox>
  </ChecklistCard>
  