1089 mettre en place le nouveau flow sso

[NicolasBuquet]

Fix #1089

La création de compte fonctionne aussi peut-être en faisant un login ProConnect et en renseignant et activant un nouveau compte ProConnect. A tester.

[gitguardian]

⚠️ GitGuardian has uncovered 2 secrets following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secrets in your pull request

GitGuardian id	GitGuardian status	Secret	Commit	Filename
13361669	Triggered	Generic High Entropy Secret	1d6502e	RiotNSE/BuildSettings.swift	View secret
13361669	Triggered	Generic High Entropy Secret	1d6502e	RiotShareExtension/BuildSettings.swift	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Revoke and rotate the secret.

2. If possible, rewrite git history with git commit --amend and git push --force.

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^{🦉 GitGuardian detects secrets in your source code to help developers and security teams secure the modern development process. You are seeing this because you or someone else with access to this repository has authorized GitGuardian to scan your pull request.}