corrected typos

public/admin.php

@@ -576,7 +576,7 @@ function show_login_page($municipality, $error = null) {
                 <input type="password" name="password" placeholder="Passwort" autofocus>
                 <button type="submit"><i class="fa-solid fa-right-to-bracket"></i> Anmelden</button>
             </form>
-            <div class="back-link"><i class="fa fa-arrow-left"></i></i> <a href="index.php">Zurück zum Bürgerportal</a></div>
+            <div class="back-link"><i class="fa fa-arrow-left"></i> <a href="index.php">Zurück zum Bürgerportal</a></div>
         </div>
     </div>
 </body>