mention dev instead of start

Author: SaraVieira

packages/app/src/app/components/Preview/DevTools/Terminal/index.tsx

@@ -58,7 +58,7 @@ class DevToolTerminal extends React.Component<
           notificationState.addNotification({
             title: 'Terminal Read-Only',
             message:
-              "The main terminal is read-only and runs what's defined in package.json#start, you can create a new terminal to input commands",
+              "The main terminal is read-only and runs what's defined in package.json#dev, you can create a new terminal to input commands",
             status: NotificationStatus.NOTICE,
             actions: {
               primary: [