Small fixes

app/assets/styles.css

@@ -128,7 +128,7 @@ body {
   width: var(--sidenav-width);
   transition-property: transform;
   transform: translate3d(-100%, 0, 0);
-  @apply bg-base-7 p-4;
+  @apply bg-base-7 p-4 pt-0;
 }
 
 .main {

app/components/sidenav-background.hbs

@@ -2,4 +2,4 @@
   role='button'
   class='sidenav-background'
   {{on 'click' this.closeSidebar}}
-></div>
+/>

app/components/sidenav-background.js

@@ -1,8 +1,6 @@
 import Component from '@glimmer/component';
-import { action } from '@ember/object';
 
 export default class SidenavBackgroundComponent extends Component {
-  @action
   closeSidebar() {
     document.body.classList.remove('sidebar-is-opened');
   }