fix issue #134 - ensure files are not locked by another processs and remove loading indicator

Oqtane.Client/Shared/ModuleInstance.razor

@@ -56,6 +56,7 @@
     public void AddModuleMessage(string message, MessageType type)
     {
         progressindicator = false;
+        StateHasChanged();
         modulemessage.SetModuleMessage(message, type);
     }