Improve routes command handling of long routes

[hmaddocks]

I am porting a Rails app to Hanami that has some deeep routes with long controller names. This is a sample of the output from the hanami routes command. The columns of the output is being squashed together.

GET     /admin/practitioners/:practitioner_id/appointment_types/:id/editappointment_types.edit        as :edit_admin_practitioner_appointment_type
PATCH   /admin/practitioners/:practitioner_id/appointment_types/:idappointment_types.update      as :admin_practitioner_appointment_type
DELETE  /admin/practitioners/:practitioner_id/appointment_types/:idappointment_types.destroy     as :admin_practitioner_appointment_type
POST    /admin/practitioners/:practitioner_id/schedulesschedules.create              as :admin_practitioner_schedules
PATCH   /admin/practitioners/:practitioner_id/schedules/:idschedules.update              as :admin_practitioner_schedule

This is after this fix. The column alignment is being maintained.

GET     /admin/practitioners/:practitioner_id/appointment_types/:id/edit                             appointment_types.edit                 as :edit_admin_practitioner_appointment_type
PATCH   /admin/practitioners/:practitioner_id/appointment_types/:id                                  appointment_types.update               as :admin_practitioner_appointment_type
DELETE  /admin/practitioners/:practitioner_id/appointment_types/:id                                  appointment_types.destroy              as :admin_practitioner_appointment_type
POST    /admin/practitioners/:practitioner_id/schedules                                              schedules.create                       as :admin_practitioner_schedules
PATCH   /admin/practitioners/:practitioner_id/schedules/:id                                          schedules.update                       as :admin_practitioner_schedule

The code ieterates the routes twice. Once to find the max column width and second to print out the routes. This might be slow for an application with a lot of routes.
The new code also maintains a 5 character spacing between columns.