Implement new registration flow with email verification (#5215)

* Implement registration with required verified email

* Optional name, emergency access, and signups_allowed

* Implement org invite, remove unneeded invite accept

* fix invitation logic for new registration flow (#5691)

* fix invitation logic for new registration flow

* clarify email_2fa_enforce_on_verified_invite

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Co-authored-by: Stefan Melmuk <509385+stefan0xC@users.noreply.github.com>

src/static/templates/scss/vaultwarden.scss.hbs

@@ -93,12 +93,19 @@ bit-nav-logo bit-nav-item .bwi-shield {
 /**** END Static Vaultwarden Changes ****/
 /**** START Dynamic Vaultwarden Changes ****/
 {{#if signup_disabled}}
+/* From web vault 2025.1.2 and onwards, the signup button is hidden 
+  when signups are disabled as the web vault checks the /api/config endpoint.
+  Note that the clients tend to aggressively cache this endpoint, so it might
+  take a while for the change to take effect. To avoid the button appearing 
+  when it shouldn't, we'll keep this style in place for a couple of versions */
+{{#if webver "<2025.3.0"}}
 /* Hide the register link on the login screen */
 app-login form div + div + div + div + hr,
 app-login form div + div + div + div + hr + p {
   @extend %vw-hide;
 }
 {{/if}}
+{{/if}}
 
 {{#unless mail_enabled}}
 /* Hide `Email` 2FA if mail is not enabled */