fix(navbar): align upgrade item with collapsed menu

Keep the upgrade action visible while collapsed and apply shared menu icon and label classes so its layout matches other navbar items. Also remove extra logout button spacing.

resources/views/components/navbar.blade.php

@@ -368,7 +368,7 @@
                     <div class="flex-1"></div>
                     @if (isInstanceAdmin() && !isCloud())
                         @persist('upgrade')
-                            <li :class="collapsed && 'lg:hidden'">
+                            <li>
                                 <livewire:upgrade />
                             </li>
                         @endpersist
@@ -420,7 +420,7 @@
                 <li>
                     <form action="/logout" method="POST">
                         @csrf
-                        <button title="Logout" type="submit" class="gap-2 mb-6 menu-item">
+                        <button title="Logout" type="submit" class="mb-6 menu-item">
                             <svg class="menu-item-icon" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                 <path fill="currentColor"
                                     d="M12 22C6.477 22 2 17.523 2 12S6.477 2 12 2a9.985 9.985 0 0 1 8 4h-2.71a8 8 0 1 0 .001 12h2.71A9.985 9.985 0 0 1 12 22m7-6v-3h-8v-2h8V8l5 4z" />