Update Localizable.strings

Changed to verb

iOSClient/Supporting Files/en.lproj/Localizable.strings

@@ -83,7 +83,7 @@
 
 "_more_"                    = "More";
 "_notifications_"           = "Notifications";
-"_logout_"                  = "Logout";
+"_logout_"                  = "Log out";
 
 // Settings