Hide login form custom fields (#6054)

Co-authored-by: Timshel <timshel@480s>

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

@@ -20,6 +20,11 @@ a[href$="/settings/sponsored-families"] {
   @extend %vw-hide;
 }
 
+/* Hide the sso `Email` input field */
+.vw-email-sso {
+  @extend %vw-hide;
+}
+
 /* Hide the `Enterprise Single Sign-On` button on the login page */
 {{#if (webver ">=2025.5.1")}}
 .vw-sso-login {
@@ -57,6 +62,11 @@ app-root ng-component > form > div:nth-child(1) > div:nth-child(3) > div:nth-chi
 }
 {{/if}}
 
+/* Hide the `Other` button on the login page */
+.vw-other-login {
+  @extend %vw-hide;
+}
+
 /* Hide Two-Factor menu in Organization settings */
 bit-nav-item[route="settings/two-factor"],
 a[href$="/settings/two-factor"] {