refactor: resync with qbqt baseline and restore genre browser

src/list/library.cpp

@@ -20,6 +20,7 @@ enum NodeType {
     NodeFavAlbums,
     NodeFavArtists,
     NodePlaylist,
+    NodeBrowseGenres,
 };
 
 Library::Library(QobuzBackend *backend, QWidget *parent)
@@ -71,6 +72,13 @@ void Library::buildStaticNodes()
     // Playlists
     m_playlistsNode = new QTreeWidgetItem(this, QStringList{tr("Playlists")});
     m_playlistsNode->setExpanded(true);
+
+    // Browse
+    m_browseNode = new QTreeWidgetItem(this, QStringList{tr("Browse")});
+    m_browseNode->setExpanded(true);
+
+    auto *genresItem = new QTreeWidgetItem(m_browseNode, QStringList{tr("Genres")});
+    genresItem->setData(0, TypeRole, NodeBrowseGenres);
 }
 
 void Library::refresh()
@@ -167,6 +175,7 @@ void Library::onItemClicked(QTreeWidgetItem *item, int)
     case NodeFavTracks:  emit favTracksRequested();  break;
     case NodeFavAlbums:  emit favAlbumsRequested();  break;
     case NodeFavArtists: emit favArtistsRequested(); break;
+    case NodeBrowseGenres: emit browseGenresRequested(); break;
     case NodePlaylist: {
         const qint64  id   = item->data(0, IdRole).toLongLong();
         const QString name = item->data(0, NameRole).toString();

src/list/library.hpp

@@ -26,6 +26,7 @@ namespace List
         void favTracksRequested();
         void favAlbumsRequested();
         void favArtistsRequested();
+        void browseGenresRequested();
         void playlistRequested(qint64 playlistId, const QString &name);
         /// Emitted after playlists are loaded so others can cache the list.
         void userPlaylistsChanged(const QVector<QPair<qint64, QString>> &playlists);
@@ -43,6 +44,7 @@ namespace List
 
         QTreeWidgetItem *m_myLibNode     = nullptr;
         QTreeWidgetItem *m_playlistsNode = nullptr;
+        QTreeWidgetItem *m_browseNode    = nullptr;
         qint64           m_openPlaylistId = 0;
 
         void buildStaticNodes();