Set iframe title in embed code (codesandbox#1600)

Author: pshrmn

packages/app/src/app/pages/common/Modals/ShareModal/getCode.js

@@ -68,7 +68,7 @@ export const getIframeScript = (sandbox, mainModule, state) =>
     sandbox,
     mainModule,
     state
-  )}" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>`;
+  )}" title="${sandbox.title || sandbox.id}" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>`;
 
 // eslint-disable-next-line
 export const getButtonMarkdown = (sandbox, mainModule, state) => {