desktop: avoid dangling reference

Let the compiler figure out the correct type...

Suggested-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

desktop-widgets/templatelayout.cpp

@@ -280,7 +280,7 @@ void TemplateLayout::parser_for(QList<token> tokenList, int from, int to, QTextS
 	const T *old = act;
 	int i = 1; // Loop iterators start at one
 	int olditerator = state.forloopiterator;
-	for (const T &item: data) {
+	for (auto &item: data) {
 		act = &item;
 		state.forloopiterator = i++;
 		parser(tokenList, from, to, out, state);