Subdirectories now route to artist/album/playlist if backend type provided

src/js/views/discover/DiscoverCategories.js

@@ -57,6 +57,7 @@ class DiscoverCategories extends React.Component {
             className="grid--tiles"
             items={categories}
             getLink={(item) => `/discover/categories/${encodeUri(item.uri)}`}
+            sourceIcon={false}
           />
         </section>
       </div>

src/js/views/library/LibraryBrowse.js

@@ -31,7 +31,6 @@ class LibraryBrowse extends React.Component {
     const {
       loading,
       directory,
-      mopidyActions,
     } = this.props;
 
     if (!directory) {

src/js/views/library/LibraryBrowseDirectory.js

@@ -37,7 +37,12 @@ const Breadcrumbs = ({ uri }) => {
 const Subdirectories = ({ items, view }) => {
   if (!items.length) return null;
 
-  const link = (item) => `/library/browse/${encodeURIComponent(item.name)}/${encodeUri(item.uri)}`;
+  // Only define the link for directories; allows URILink to intelligently route based on type
+  const link = (item) => (
+    item.type === 'directory'
+      ? `/library/browse/${encodeURIComponent(item.name)}/${encodeUri(item.uri)}`
+      : null
+  );
 
   if (view === 'list') {
     return (