Fix live input (codesandbox#3632)

* make live link readonlu

* fix casing

Author: SaraVieira

packages/app/src/app/pages/Sandbox/Editor/Workspace/screens/Live/LiveNow.tsx

@@ -95,6 +95,7 @@ export const LiveNow = () => {
           </Text>
 
           <Input
+            readOnly
             defaultValue={`https://codesandbox.io/live/${roomId}`}
             marginBottom={2}
             onFocus={({ target }: { target: any }) => target.select()}