Small nav updates and fixes

app/views/layouts/_header.html.erb

@@ -1,11 +1,11 @@
 <header class="container flex items-center justify-between px-4 py-6 mx-auto border-b-2 border-gray-300">
   <a href="/" class="text-4xl font-bold text-hsrm-gray">Plottservice Fachbereich AB</a>
-  <% if user_signed_in? && current_user&.admin? || current_user&.operator? %>
+  <% if user_signed_in? && current_user.admin? || current_user.operator? %>
     <nav>
       <ul class="flex justify-center font-semibold items-color">
         <li class="relative">
           <button class="px-4 py-2 cursor-default hover:text-hsrm-red">
-            Admin
+            <%= link_to_if current_user.admin?, "Admin", admin_dashboard_path %>
           </button>
         </li>
         <li class="relative">
@@ -19,8 +19,11 @@
   <nav>
     <ul class="flex items-center">
       <% if user_signed_in? %>
-        <li><%= current_user.email %></li>
-        <li><%= button_to 'Abmelden', Current.session, method: :delete, class: "btn btn-primary" %></li>
+        <li><%= button_to Current.session, method: :delete, class: "flex btn btn-primary" do %>
+            <%= current_user.email %>
+            <%= icon "arrow-right-on-rectangle", class: "ml-2 size-6" %>
+          <% end %>
+        </li>
       <% else %>
         <li><%= link_to 'Anmelden', sign_in_path, class: "btn btn-primary" %></li>
       <% end %>