fix(admin): conditional promotion

Description
When the pro version is activated the promotion will be removed too.

resolves: Pro teaser removal  #332

assets/src/components/dashboard/Promotion.js

@@ -2,10 +2,11 @@ import React from "react";
 import PremiumBox from "./PremiumBox";
 import Gaurantee from "./Gaurantee";
 const Promotion = () => {
+  const isPro = !sgsbAdmin?.isPro;
   const pricingPath = window.location.hash === "#/dashboard/pricing";
   return (
     <div className="sgsb-promotion-block">
-      {!pricingPath && <PremiumBox />}
+      {(!pricingPath && isPro) && <PremiumBox />}
       <Gaurantee />
     </div>
   );