refactor: move database-related projects to separate folder

SqlData/Application/Cqrs/Group/Queries/GetGroupList/GroupListVm.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace Mirea.Api.DataAccess.Application.Cqrs.Group.Queries.GetGroupList;
+
+/// <summary>
+/// Represents a view model containing multiple groups name.
+/// </summary>
+public class GroupListVm
+{
+    /// <summary>
+    /// The list of groups.
+    /// </summary>
+    public IList<GroupLookupDto> Groups { get; set; } = new List<GroupLookupDto>();
+}