Highlight current nav item correctly

_template.pug

@@ -55,7 +55,7 @@ html(lang="en")
         .following.bar
           .ui.container
             .ui.large.secondary.menu.inverted
-              a.view-ui.item(href="/", class="#{page === 'index' ? 'active' : ''}")
+              a.view-ui.item(href="/", class=#{page === 'index' ? 'active' : ''})
                 img.ui.logo.left(src="/assets/images/icon.svg")
                 | QuasselDroid
               a.view-ui.item(href="/docs/")
@@ -65,7 +65,7 @@ html(lang="en")
                   i.icon.github.left
                   span.text.
                     GitHub
-                a.view-ui.item(href="/releases/", class="#{page === 'releases' ? 'active' : ''}")
+                a.view-ui.item(href="/releases/", class=#{page === 'releases' ? 'active' : ''})
                   i.icon.download.left
                   span.text.
                     Download