Update routes.rb

- Create concerns: archivable and paginable
- Apply concerns
- Change routes for paperworks
Update inflections.rb initializer
Update Paperworks resource
Update layout navbar
Remove useless .keep files
Create model concerns
Update application_controller for debug infinite loop
Upgrade paperworks resource

- Add form
- Optimize code
- Add validators on model and use concerns
Update welcome controller
Update locales
Upgrade and optimize routes.rb
Update application stylesheets
Update companies_controller.rb
Update layout/_navbar.rb