Removing Devise and Refactoring Sign Up page

app/assets/stylesheets/application.scss

app/controllers/application_controller.rb

app/controllers/home_controller.rb

app/controllers/registrations_controller.rb

app/helpers/registrations_helper.rb

app/models/sign_up_validation.rb

app/vaildators/password_validator.rb

app/views/confirmations/new.html.erb

app/views/home/home.html.erb

app/views/mailer/confirmation_instructions.html.erb

app/views/mailer/email_changed.html.erb

app/views/mailer/password_change.html.erb

app/views/mailer/reset_password_instructions.html.erb

app/views/mailer/unlock_instructions.html.erb

app/views/passwords/edit.html.erb

app/views/passwords/new.html.erb

app/views/registrations/edit.html.erb

app/views/registrations/new.html.erb

app/views/sessions/new.html.erb

app/views/shared/_error_messages.html.erb