Match klikatko/mc-panel look: dark navbar, Bootstrap 5.3.8, MDI icons

views/_navbar.erb

@@ -1,6 +1,6 @@
-<nav class="navbar navbar-expand-lg navbar-light bg-light">
+<nav class="navbar navbar-expand-lg navbar-dark bg-dark mb-4">
   <div class="container-fluid d-flex align-items-center">
-    <a class="navbar-brand" href="/">Print server</a>
+    <a class="navbar-brand" href="/"><i class="mdi mdi-printer"></i> Print server</a>
     <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
       <span class="navbar-toggler-icon"></span>
     </button>