use a binding to connect to playlist in views

should allow the initial view to get the correct link to the playlist

fix enqueue from items in the initial view

src/qml/DataGridView.qml

@@ -59,7 +59,7 @@ FocusScope {
 
         proxyModel.sourceModel = realModel
         proxyModel.dataType = modelType
-        proxyModel.playList = ElisaApplication.mediaPlayListProxyModel
+        proxyModel.playList = Qt.binding(function() { return ElisaApplication.mediaPlayListProxyModel })
         gridView.contentModel = proxyModel
 
         proxyModel.sortModel(sortOrder)

src/qml/DataListView.qml

@@ -84,7 +84,7 @@ FocusScope {
 
         proxyModel.sourceModel = realModel
         proxyModel.dataType = modelType
-        proxyModel.playList = ElisaApplication.mediaPlayListProxyModel
+        proxyModel.playList = Qt.binding(function() { return ElisaApplication.mediaPlayListProxyModel })
         listView.contentModel = proxyModel
 
         if (!displaySingleAlbum) {