Resize list to minimum necessary height

src/utility.cpp

@@ -962,3 +962,14 @@ bool listMoveDown(QListWidget *list)
 	list->setCurrentRow(index + 1);
 	return true;
 }
+
+void setHeightToContentHeight(QListWidget *list)
+{
+	auto nrItems = list->count();
+	if (nrItems == 0) {
+		list->setMaximumHeight(0);
+	} else {
+		list->setMaximumHeight(list->sizeHintForRow(0) * nrItems +
+				       2 * list->frameWidth());
+	}
+}