Switch to side-by-side view

--- a/examples/firefox-user.js
+++ b/examples/firefox-user.js
@@ -1,5 +1,5 @@
 // To allow access to files via recoll-webui include the following in your:
-// ~/.mozilla/firefox/<profile>/user.js 
+// ~/.mozilla/firefox/<profile>/user.js
 
 user_pref("capability.policy.policynames", "localfilelinks");
 user_pref("capability.policy.localfilelinks.sites", "http://localhost:8080");