Rename UI Builder label (OpenZeppelin#673)

Author: ericglau

packages/ui/public/index.html

@@ -104,8 +104,8 @@
 
     <div class="flex flex-row gap-2">
       <div class="text-sm text-gray-600 leading-tight text-right">
-        <div>After deploying a contract, use the new</div>
-        <div>Contracts UI Builder to spin up a quick UI</div>
+        <div>After deploying a contract, use the</div>
+        <div>new UI Builder to spin up a quick UI</div>
       </div>
 
       <div class="flex items-center">