Use list instead of map for songs in internet search

Fixes issues with sorting

src/internet/internetsearchmodel.cpp

@@ -393,11 +393,11 @@ MimeData *InternetSearchModel::LoadTracks(const InternetSearchView::ResultList &
     return nullptr;
   }
 
-  SongMap songs;
+  SongList songs;
   QList<QUrl> urls;
   urls.reserve(results.count());
   for (const InternetSearchView::Result &result : results) {
-    songs.insert(result.metadata_.song_id(), result.metadata_);
+    songs.append(result.metadata_);
     urls << result.metadata_.url();
   }
 

src/internet/internetsearchview.cpp

@@ -766,7 +766,7 @@ void InternetSearchView::AddArtists() {
   MimeData *mimedata = SelectedMimeData();
   if (!mimedata) return;
   if (const InternetSongMimeData *internet_song_data = qobject_cast<const InternetSongMimeData*>(mimedata)) {
-    emit AddArtistsSignal(internet_song_data->songs.values());
+    emit AddArtistsSignal(internet_song_data->songs);
   }
 
 }
@@ -776,7 +776,7 @@ void InternetSearchView::AddAlbums() {
   MimeData *mimedata = SelectedMimeData();
   if (!mimedata) return;
   if (const InternetSongMimeData *internet_song_data = qobject_cast<const InternetSongMimeData*>(mimedata)) {
-    emit AddAlbumsSignal(internet_song_data->songs.values());
+    emit AddAlbumsSignal(internet_song_data->songs);
   }
 
 }

src/internet/internetsearchview.h

@@ -142,7 +142,7 @@ class InternetSearchView : public QWidget {
   void AddToPlaylist(QMimeData*);
   void AddArtistsSignal(SongList);
   void AddAlbumsSignal(SongList);
-  void AddSongsSignal(SongMap);
+  void AddSongsSignal(SongList);
 
  private slots:
   void SwapModels();

src/internet/internetservice.h

@@ -123,7 +123,7 @@ class InternetService : public QObject {
 
   void AddArtists(SongList songs);
   void AddAlbums(SongList songs);
-  void AddSongs(SongMap songs);
+  void AddSongs(SongList songs);
 
   void RemoveArtists(SongList songs);
   void RemoveAlbums(SongList songs);

src/internet/internetsongmimedata.h

@@ -21,8 +21,6 @@
 #ifndef INTERNETSONGMIMEDATA_H
 #define INTERNETSONGMIMEDATA_H
 
-#include <QMap>
-
 #include "core/mimedata.h"
 #include "core/song.h"
 
@@ -35,7 +33,7 @@ class InternetSongMimeData : public MimeData {
   explicit InternetSongMimeData(InternetService *_service, QObject* = nullptr) : service(_service) {}
 
   InternetService *service;
-  SongMap songs;
+  SongList songs;
 };
 
 #endif  // INTERNETSONGMIMEDATA_H