refactor: add .editorconfig and refactor code

Endpoint/Controllers/V1/GroupController.cs

@@ -38,7 +38,8 @@ public class GroupController(IMediator mediator) : BaseController
     /// <returns>A list of groups.</returns>
     [HttpGet]
     [BadRequestResponse]
-    public async Task<ActionResult<List<GroupResponse>>> Get([FromQuery][Range(0, int.MaxValue)] int? page, [FromQuery][Range(1, int.MaxValue)] int? pageSize)
+    public async Task<ActionResult<List<GroupResponse>>> Get([FromQuery][Range(0, int.MaxValue)] int? page,
+        [FromQuery][Range(1, int.MaxValue)] int? pageSize)
     {
         var result = await mediator.Send(new GetGroupListQuery()
         {