[ticket/469] Only allow showing left or right module on all pages

B3P-469

styles/prosilver/template/event/overall_header_head_append.html

@@ -1,7 +1,9 @@
 <!-- IF T_EXT_THEME_PATH -->
 <!-- INCLUDECSS ../theme/portal.css -->
-<!-- INCLUDECSS ../theme/portal_responsive.css -->
 <!-- IF S_PORTAL_ALL -->
 <!-- INCLUDECSS ../theme/portal_all.css -->
+<!-- INCLUDECSS ../theme/portal_all_responsive.css -->
+<!-- ELSE -->
+<!-- INCLUDECSS ../theme/portal_responsive.css -->
 <!-- ENDIF -->
 <!-- ENDIF -->