"Go to top" button: move JS and CSS to Landing Page

views/DE/project/projectList.pug

@@ -46,27 +46,11 @@ html(lang="de")
             -webkit-box-orient: vertical;
             overflow: hidden;
         }
-
-        #topBtn {
-            display: none; /* Hidden by default */
-            position: fixed; /* Fixed/sticky position */
-            bottom: 20px; /* Place the button at the bottom of the page */
-            right: 30px; /* Place the button 30px from the right */
-            z-index: 99; /* Make sure it does not overlap */
-            border: none; /* Remove borders */
-            outline: none; /* Remove outline */
-            background-color: red; /* Set a background color */
-            color: white; /* Text color */
-            cursor: pointer; /* Add a mouse pointer on hover */
-            padding: 10px; /* Some padding */
-            font-size: 18px; /* Increase font size */
-        }
-        
   body
     div(class="container")
         div(class="row")
             div(class="col-md-12 margin_bottom_40")
-                img(class="mx-auto" src="/img/ProjektcodeDaten.png" width="100%")
+                img(class="mx-auto" src="https://transfer.hft-stuttgart.de/img/ProjektcodeDaten.png" width="100%")
     div(class="container")
         p Hier finden Sie den direkten Zugang zu den Inhalten der bei uns gehosteten Projekte.
         p Weitere Informationen zu den bei uns gehosteten Projekten finden Sie <a href="/projektinformationen">hier</a>.
@@ -116,23 +100,6 @@ html(lang="de")
     // General functions
     script(src="/js/generalFunction.js")
     script.
-        //Get the "go to the top" button:
-        var myTopBtn = document.getElementById("topBtn");
-        // When the user scrolls down 20px from the top of the document, show the button
-        window.onscroll = function() { scrollFunction() };
-        function scrollFunction() {
-            if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
-                myTopBtn.style.display = "block";
-            } else {
-                myTopBtn.style.display = "none";
-            }
-        }
-        // When the user clicks on the button, scroll to the top of the document
-        function topFunction() {
-            document.body.scrollTop = 0; // For Safari
-            document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
-        } 
-
         function searchFunction() {
             var input = document.getElementById("searchInput")
             var filter = input.value.toUpperCase()