Refactored some things and added some css styles to the javascript things

frontend/src/components/Navbar.js

@@ -48,7 +48,7 @@ function Navbar() {
             </li>
             <li className="nav-item">
               <Link
-                to="/services"
+                to="/Ueber"
                 className="nav-links"
                 onClick={closeMobileMenu}
               >
@@ -57,7 +57,7 @@ function Navbar() {
             </li>
             <li>
               <Link
-                to="/sign-up"
+                to="/manual"
                 className="nav-links"
                 onClick={closeMobileMenu}
               >

frontend/src/components/pages/Ueber.js

@@ -5,7 +5,9 @@ import Footer from "../../Footer";
 export default function Ueber() {
   return (
     <>
-      <h2 className="about">Über das Projekt</h2>
+      <div className="sitePage">
+        <h1>Über das Projekt</h1>
+      </div>
       <Footer />
     </>
   );