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

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

src/qml/SubtitlesMenu.qml

@@ -28,6 +28,7 @@ AppMenu {
     }
     MenuSeparator {}
     AppMenuItem { action: root.actions.translateSubtitle }
+    AppMenuItem { action: root.actions.translatePlaylist }
     AppMenuItem { action: root.actions.editGlossary }
     AppMenuItem { action: root.actions.cancelTranslation }
     MenuSeparator {}