fix compile error so custom runtime variables are accisible in react

public/index.html

@@ -9,16 +9,16 @@
       name="description"
       content="Web site created using create-react-app"
     />
+    <script>
+      var EMULATOR_CONSOLE_READ = "";
+      var EMULATOR_IS_INPUT = false;
+    </script>
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--
       manifest.json provides metadata used when your web app is installed on a
       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
     -->
     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
-    <script>
-      var EMULATOR_CONSOLE_READ = "";
-      var EMULATOR_IS_INPUT = false;
-    </script>
     <!--
       Notice the use of %PUBLIC_URL% in the tags above.
       It will be replaced with the URL of the `public` folder during the build.

src/App.js

@@ -65,12 +65,12 @@ class App extends React.Component {
 
     readInputCallBack = (codeToEval) => {
         console.log(test);
-        if (!EMULATOR_IS_INPUT) {
-            EMULATOR_CONSOLE_READ = window.prompt()
+        if (!window.EMULATOR_IS_INPUT) {
+            window.EMULATOR_CONSOLE_READ = window.prompt()
         }
         eval(codeToEval);
-        EMULATOR_CONSOLE_READ = "";
-        EMULATOR_IS_INPUT = false;
+        window.EMULATOR_CONSOLE_READ = "";
+        window.EMULATOR_IS_INPUT = false;
     };
 
     processWaccCode = async (code) => {
@@ -170,7 +170,8 @@ class App extends React.Component {
                                         }}
                                     >
                                         <Terminal commandPassThrough={cmd => {
-                                            test = cmd[0]
+                                            window.EMULATOR_CONSOLE_READ = cmd[0];
+                                            window.EMULATOR_IS_INPUT = true;
                                         }} watchConsoleLogging hideTopBar allowTabs={false}/>
                                     </div>
                                 </CardBody>