feat(translate): translate a whole playlist so the next episodes are ready (#16)

Co-authored-by: Tri Vo Khac <git@trivk.dev>

src/playlist/playlistmodel.cpp

@@ -278,6 +278,11 @@ QUrl PlaylistModel::urlAt(int index) const
     return m_urls.value(index);
 }
 
+QList<QUrl> PlaylistModel::urls() const
+{
+    return m_urls;
+}
+
 void PlaylistModel::setPlayingIndex(int index)
 {
     if (index == m_playingIndex) {

src/playlist/playlistmodel.h

@@ -59,6 +59,7 @@ public:
     Q_INVOKABLE void move(int from, int to);
     Q_INVOKABLE void clear();
     Q_INVOKABLE QUrl urlAt(int index) const;
+    Q_INVOKABLE QList<QUrl> urls() const;
 
     // Media files directly inside \a folder, sorted the way a file manager does
     // ("Episode 2" before "Episode 10").