Oqtane controls updates

ActionDialog and ActionLink now allow other icon sets whilst still adhering to the legacy "oi oi-" icon set.
Pager added SearchBoxClass Class parameter to the Search div.
TabStrip added a TabContentClass Class parameter to the tab content div.

Oqtane.Client/Modules/Controls/ActionDialog.razor

@@ -181,7 +181,10 @@ else
                 _openText = string.Empty;
             }
 
-            if (!IconName.Contains(" "))
+            // Check if IconName starts with "oi oi-"
+            bool startsWithOiOi = IconName.StartsWith("oi oi-");
+
+            if (!startsWithOiOi && !IconName.Contains(" "))
             {
                 IconName = "oi oi-" + IconName;
             }