disable pulse animation that kills performances in some mobile devices

layouts/partials/showcaseBanner.html

@@ -15,7 +15,7 @@
       <br />
       <br />
 
-      <a href="/start/"><button  id="startbtn" class="highlightedCl fa-beat-fade" style="--fa-beat-fade-opacity: 0.97; --fa-beat-fade-scale: 1.045;"><i class="fas fa-rocket"></i> Get Started </button></a>
+      <a href="/start/"><button  id="startbtn" class="highlightedCl" ><i class="fas fa-rocket"></i> Get Started </button></a>
 
       <a href="/#features" title="overview"><button id="startbtn"   class="highlightedCl"><i class="fas fa-question-circle" style="padding:0"></i></button></a>