Add Default redirection to Dashboard to prevent login if the user is connected

What does this MR do and why?

This merge modify the default route to the dashboard
*It prevent the user to login again if he's still connected (cookie stored).*

How to set up and validate locally

Start Crafty and if the user is still logged, it go to the dahsboard page. If not, it asks for login.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes?
• Have you resolved any lint issues?
• Have you assigned a reviewer?
• Have you applied correct labels?