Switch to side-by-side view

--- a/src/recollinstall.in
+++ b/src/recollinstall.in
@@ -111,6 +111,7 @@
 	   ${datadir}/recoll/filters/ || exit 1
 
 ${INSTALL} -m 0444 \
+           desktop/recollindex.desktop \
 	   sampleconf/mimeconf \
 	   sampleconf/mimeview \
 	   sampleconf/recoll.conf \