fix not isS11_12 not defined error

still not sure why we get that... :-(

hass_frontend/index.html

@@ -6,6 +6,7 @@
 if(-1===navigator.userAgent.indexOf("Android")&&-1===navigator.userAgent.indexOf("CrOS")){function _pf(o,t){var n=document.createElement("link");n.rel="preload",n.as="font",n.type="font/woff2",n.href=o,n.crossOrigin="anonymous",document.head.appendChild(n)}_pf=("static/fonts/roboto/Roboto-Regular.woff2"),_pf=("static/fonts/roboto/Roboto-Medium.woff2")}
 </script>
 <script crossorigin="use-credentials">
+var isS11_12=/(?:.*(?:iPhone|iPad).*OS (?:11|12)_\d)|(?:.*Version\/(?:11|12)(?:\.\d+)*.*Safari\/)/.test(navigator.userAgent);
 isS11_12||(import("./frontend_latest/core.oODqcutgVrg.js"),import("./frontend_latest/app.g4FHun76y9g.js"),window.customPanelJS="frontend_latest/custom-panel.BfpL8X8_uh4.js",window.latestJS=!0)
 </script>
 <script>