Switch to side-by-side view

--- a/tests/config/recoll.conf
+++ b/tests/config/recoll.conf
@@ -3,6 +3,8 @@
 
 daemloglevel = 6
 daemlogfilename = /tmp/rclmontrace
+
+systemfilecommand = xdg-mime query filetype
 
 indexStripChars = 1
 detectxattronly = 1