Bug 19041: (bug 17855 follow-up) Fix regression on bug 16058

From
  commit 0492fcf87f
    Bug 17855: Onboarding tool

+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/intranet-main.tt
@@ -1,5 +1,3 @@
-[% USE Koha %]
-[% SET footerjs = 1 %]

+[% USE Koha %] has been re-added by
  commit 151cdcd133
    Bug 18673: News author does not display on staff client home page

But not the footerjs = 1

Test plan:
From the main page of the staff interface, delete a news item
Without this patch applied you will not get a JS confirmation message

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Trivial fix.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

koha-tmpl/intranet-tmpl/prog/en/modules/intranet-main.tt

@@ -1,4 +1,5 @@
 [% USE Koha %]
+[% SET footerjs = 1 %]
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha staff client</title>
 <link rel="stylesheet" type="text/css" href="[% interface %]/[% theme %]/css/mainpage.css" />