Add gateway and filter

src/GameIdeas/GameIdeas.Shared/Dto/UserFilterDto.cs

@@ -0,0 +1,8 @@
+namespace GameIdeas.Shared.Dto;
+
+public class UserFilterDto
+{
+    public int CurrentPage { get; set; }
+    public string? Name { get; set; }
+    public IEnumerable<string>? RoleIds { get; set; }
+}

src/GameIdeas/GameIdeas.Shared/Dto/UserListDto.cs

@@ -0,0 +1,7 @@
+namespace GameIdeas.Shared.Dto;
+
+public class UserListDto
+{
+    public IEnumerable<UserDto>? Users { get; set; }
+    public int UsersCount { get; set; }
+}