Allow sending tags as well as the selected URL

This required two changes:

1. in the QML view, the signal has been changed to url, var
2. the model directly outputs a QStringList for ease of use

src/model/danboorupostmodel.cpp

@@ -108,9 +108,8 @@ QVariant DanbooruPostModel::data(const QModelIndex &index, int role) const
             return post->rating();
         case TagRole:
         {
-            QVariant variant;
+            QStringList tagList = post->tags().toList();
-            variant.setValue(post->tags());
+            return tagList;
-            return variant;
         }
         default:
             return QVariant();

src/qml/danbooruimageview.qml

@@ -36,7 +36,7 @@ Rectangle {
     property bool poolMode: false;
 
     signal downloadFinished()
-    signal downloadRequested(url url)
+    signal downloadRequested(url url, var tags)
     signal downloadStarted()
     signal fileInfo(url name, var tags)
 
@@ -167,7 +167,7 @@ Rectangle {
                             z: 1
 
                             onClicked: {
-                                rootObj.downloadRequested(fileUrl)
+                                rootObj.downloadRequested(fileUrl, tags)
                             }
 
                             Behavior on opacity {