FIX #9344 Error in Browsers console after adding tabs to Quickcreate: selectTabOnError

Found that the name of the function selectTabOnError has been declared
twice at the theme SuiteP

If I change the definition of the function from let to var it does
not throws the error on the javascript console.

Author: lukio

themes/SuiteP/include/DetailView/DetailView.tpl

@@ -333,7 +333,7 @@
                         $('#content div.panel-content div.panel.tab-panel-' + tab).show();
                     };
 
-                    let selectTabOnError = function(tab) {
+                    var selectTabOnError = function(tab) {
                         selectTabDetailView(tab);
                         $('#content ul.nav.nav-tabs > li').removeClass('active');
                         $('#content ul.nav.nav-tabs > li a').css('color', '');