#92 removed back button - user can either move home or to next screen

styling also updated
it is a bit hacky, but I would save adding the question id to the session storage for another time - needed to access the intro endpoint

src/views/extract.hbs

@@ -9,19 +9,19 @@
   </div>
   <div class='navbar'>
 
-    <div class="button extract-buttons">
+    <!-- <div class="button extract-buttons">
       <a href="/intro">
   <img id='back-btn' src='../assets/backarrow.jpg' class= 'navbar_home-btn navbar-button'>
       </a>
-    </div>
+    </div> -->
 
-    <div class="button extract-buttons">
+    <div class="button intro-buttons">
       <a href="/">
   <img id='home-btn' src='../assets/home.png' class= 'navbar_home-btn navbar-button'>
       </a>
     </div>
 
-    <div class="button extract-buttons">
+    <div class="button intro-buttons">
       <a href="/multichoice">
       <input type='button' class='navbar_forward-btn navbar-button'>
       </a>