Update Login & Register views design

[Bilelkihal]

Why should we update the existing views:

• The old interface has bad styling and does not keep pace with modern website designs.

Decisions I made in the new design that need to be approved:

• Replace "Account name" by "User name" (Because it is the most used in different websites).
• Add registration and login directly using Google and GitHub (make the process much easier for users, users do not like to remember a lot of passwords, more secure, the internet is going passwordless in the next years).
• Real-time user error correction in registration (Ex: Tell the user that the username is already in use, or that the password is weak the time he's typing).

Check the new design & leave me comments in Figma:
https://www.figma.com/file/n2tOIfgVlVvFAr3F00Ab5m/Ontoportal-alliance?node-id=9%3A19&t=BhpXNbL45EpcQHv2-1

[syphax-bouazzouni]

I added comments to your figma (is the link public ?), good work 👍

[Bilelkihal]

I've replied to your comments in Figma.
Yeah, anyone with the link can view it,
do I make it private?

[syphax-bouazzouni]

@jonquet Can you review and validate the Figma mockup so that we can start implementation

[jonquet]

Figma mockups looks great. Just made 2 comments.

Is the integration with Google / GitHub login easy to do? This would be a great addition.
See also: agroportal/project-management#341
(i.e., even if a user do not select login via GitHub, it woudl be good to ask them their ids on GitHub and ORCID)

Ready to start implementing.

[syphax-bouazzouni]

Done in #142 and #144