modified all admin UIs to position action buttons on the left side of grids and implemented ActionDialog throughout rather than dedicated delete components

Oqtane.Client/Services/Interfaces/IScheduleService.cs

@@ -0,0 +1,19 @@
+using Oqtane.Models;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Oqtane.Services
+{
+    public interface IScheduleService
+    {
+        Task<List<Schedule>> GetSchedulesAsync();
+
+        Task<Schedule> GetScheduleAsync(int ScheduleId);
+
+        Task<Schedule> AddScheduleAsync(Schedule Schedule);
+
+        Task<Schedule> UpdateScheduleAsync(Schedule Schedule);
+
+        Task DeleteScheduleAsync(int ScheduleId);
+    }
+}