feat(sso): allow to use OIDC and SAML (#7246)

## What it does
### Backend
- [x] Add a mutation to create OIDC and SAML configuration
- [x] Add a mutation to delete an SSO config
- [x] Add a feature flag to toggle SSO
- [x] Add a mutation to activate/deactivate an SSO config
- [x] Add a mutation to delete an SSO config
- [x] Add strategy to use OIDC or SAML
- [ ] Improve error management

### Frontend
- [x] Add section "security" in settings
- [x] Add page to list SSO configurations
- [x] Add page and forms to create OIDC or SAML configuration
- [x] Add field to "connect with SSO" in the signin/signup process
- [x] Trigger auth when a user switch to a workspace with SSO enable
- [x] Add an option on the security page to activate/deactivate the
global invitation link
- [ ] Add new Icons for SSO Identity Providers (okta, Auth0, Azure,
Microsoft)

---------

Co-authored-by: Félix Malfait <felix@twenty.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/core-modules/client-config/client-config.entity.ts

@@ -15,6 +15,9 @@ class AuthProviders {
 
   @Field(() => Boolean)
   microsoft: boolean;
+
+  @Field(() => Boolean)
+  sso: boolean;
 }
 
 @ObjectType()

packages/twenty-server/src/engine/core-modules/client-config/client-config.resolver.ts

@@ -16,6 +16,7 @@ export class ClientConfigResolver {
         magicLink: false,
         password: this.environmentService.get('AUTH_PASSWORD_ENABLED'),
         microsoft: this.environmentService.get('AUTH_MICROSOFT_ENABLED'),
+        sso: this.environmentService.get('AUTH_SSO_ENABLED'),
       },
       billing: {
         isBillingEnabled: this.environmentService.get('IS_BILLING_ENABLED'),