Use branch sim for now

Author: microbit-grace

src/simulator/Simulator.tsx

@@ -43,14 +43,14 @@ const Simulator = ({
   minWidth,
   simFocus,
 }: SimulatorProps) => {
-  const production =
-    "https://python-simulator.usermbit.org/v/0.1/simulator.html";
-  const staging =
-    "https://python-simulator.usermbit.org/staging/simulator.html";
-  const url = stage === "PRODUCTION" ? production : staging;
+  // const production =
+  //   "https://python-simulator.usermbit.org/v/0.1/simulator.html";
+  // const staging =
+  //   "https://python-simulator.usermbit.org/staging/simulator.html";
+  // const url = stage === "PRODUCTION" ? production : staging;
   // For testing with sim branches:
-  //const branch = "upgrade-mpy";
-  //const url = `https://review-python-simulator.usermbit.org/${branch}/simulator.html`;
+  const branch = "beta-updates";
+  const url = `https://review-python-simulator.usermbit.org/${branch}/simulator.html`;
 
   const ref = useRef<HTMLIFrameElement>(null);
   const intl = useIntl();