Resoldved an issue with redirect tabIds on non-localized sites

This is a follow up on dnnsoftware#4851

All my testing had been done on a localized site and after having those settings exist in the database.

@david-poindexter just found out it was problematic on a clean install as those settings simply do not exists and the code failed getting those settings values from the dictionary of settings. This PR solves that.

Dnn.AdminExperience/Dnn.PersonaBar.Extensions/Services/SiteSettingsController.cs

@@ -319,11 +319,11 @@ public HttpResponseMessage GetDefaultPagesSettings(int? portalId, string culture
                 }
 
                 var portal = PortalController.Instance.GetPortal(pid, cultureCode);
-                var localizedPortalSettings = PortalController.Instance.GetPortalSettings(portal.PortalID, cultureCode);
+                var localizedPortalSettings = PortalController.Instance.GetPortalSettings(pid, cultureCode);
 
-                int redirectAfterLoginTabId = int.TryParse(localizedPortalSettings["Redirect_AfterLogin"], out redirectAfterLoginTabId) ? redirectAfterLoginTabId : -1;
-                int redirectAfterLogoutTabId = int.TryParse(localizedPortalSettings["Redirect_AfterLogout"], out redirectAfterLogoutTabId) ? redirectAfterLogoutTabId : -1;
-                int redirectAfterRegistrationTabId = int.TryParse(localizedPortalSettings["Redirect_AfterRegistration"], out redirectAfterRegistrationTabId) ? redirectAfterRegistrationTabId : -1;
+                int redirectAfterLoginTabId = this.GetLocalizedTabIdSetting(localizedPortalSettings, "Redirect_AfterLogin");
+                int redirectAfterLogoutTabId = this.GetLocalizedTabIdSetting(localizedPortalSettings, "Redirect_AfterLogout");
+                int redirectAfterRegistrationTabId = this.GetLocalizedTabIdSetting(localizedPortalSettings, "Redirect_AfterRegistration");
 
                 return this.Request.CreateResponse(HttpStatusCode.OK, new
                 {
@@ -3582,5 +3582,17 @@ private int ValidateTabId(int tabId, int portalId)
             var tab = TabController.Instance.GetTab(tabId, portalId);
             return tab != null && !tab.IsDeleted ? tab.TabID : Null.NullInteger;
         }
+
+        private int GetLocalizedTabIdSetting(Dictionary<string, string> localizedPortalSettings, string settingKey)
+        {
+            var settingValue = string.Empty;
+            if (localizedPortalSettings.TryGetValue(settingKey, out settingValue))
+            {
+                int tabId = int.TryParse(settingValue, out tabId) ? tabId : -1;
+                return tabId;
+            }
+
+            return -1;
+        }
     }
 }