Add utm params to Premium promo modal Download clicks

app/hub/Views/HomeView/HomeViewContainer.jsx

@@ -76,7 +76,7 @@ class HomeViewContainer extends Component {
 				window.open(`https://checkout.${DOMAIN}.com/plus?utm_source=gbe&utm_campaign=intro_hub`, '_blank');
 				break;
 			case 'premium':
-				window.open('https://ghostery.com/thanks-for-downloading-midnight', '_blank');
+				window.open('https://ghostery.com/thanks-for-downloading-midnight?utm_source=gbe&utm_campaign=intro_hub', '_blank');
 				break;
 			case 'basic':
 			default:

app/panel/components/Panel.jsx

@@ -238,7 +238,7 @@ class Panel extends React.Component {
 	_handlePromoTryMidnightClick = () => {
 		this.props.actions.togglePromoModal();
 
-		const url = 'https://ghostery.com/thanks-for-downloading-midnight';
+		const url = 'https://ghostery.com/thanks-for-downloading-midnight?utm_source=gbe&utm_campaign=in_app';
 		sendMessage('openNewTab', {
 			url,
 			become_active: true,