Client fixes

Client is partially done.
227 warnings left out of 1500
I like Rider

Oqtane.Server/Controllers/TenantController.cs

@@ -2,6 +2,7 @@
 using Microsoft.AspNetCore.Authorization;
 using Oqtane.Models;
 using System.Collections.Generic;
+using Oqtane.Enums;
 using Oqtane.Shared;
 using Oqtane.Infrastructure.Interfaces;
 using Oqtane.Repository;