Refactor namespaces for DTO classes

Updated `DtoMappingProfile` and `RecActionDto` to use the
`ReC.Application.Common.Dto` namespace instead of
`ReC.Application.Dto`. Adjusted `ReadRecActionQuery` to reflect
this namespace change. No functional changes were introduced.

src/ReC.Application/RecActions/Queries/ReadRecActionQuery.cs

@@ -1,10 +1,10 @@
 using MediatR;
-using ReC.Application.Dto;
 using DigitalData.Core.Abstraction.Application.Repository;
 using ReC.Domain.Entities;
 using AutoMapper;
 using Microsoft.EntityFrameworkCore;
 using DigitalData.Core.Exceptions;
+using ReC.Application.Common.Dto;
 
 namespace ReC.Application.RecActions.Queries;