Remove container from nav

- Replaced container for the nav component with a custom style instead using
max-width and margin: 0 auto.

src/components/Nav.svelte

@@ -17,7 +17,6 @@
     }
 </style>
 <header>
-    <div class="container">
     <nav class="navbar navbar-expand-md">
         <div class="navbar-collapse order-1 order-md-0 dual-collapse2">
             <ul class="navbar-nav mr-auto">
@@ -38,5 +37,4 @@
             </ul>
         </div>
     </nav>
-    </div>
 </header>

static/css/global.css

@@ -44,6 +44,11 @@ hr {
   background-color: var(--line-color);
 }
 
+nav {
+  max-width: 1200px;
+  margin: 0 auto;
+}
+
 li a:hover {
   border-bottom: 3px solid var(--line-color);
   text-decoration: none;