First cut of a simplified "intro" UI layout (#265)

* First cut of a simplified "intro" UI layout

* Linter

* Add guest role and intro-only access

* Fix guest role UI defaults (#940)

Use enum predicate to avoid missing role helper.

* Remove legacy user role mapping (#941)

Drop the unused user role references in role normalization
and SSO role mapping forms to avoid implying a role that
never existed.

Refs: #0

* Remove role normalization (#942)

Remove role normalization

Roles are now stored directly without legacy mappings.

* Revert role mapping logic

* Remove `normalize_role_settings`

* Remove unnecessary migration

* Make `member` the default

* Broken `.erb`

---------

Signed-off-by: Juan José Mata <juanjo.mata@gmail.com>

app/views/invitations/accept_choice.html.erb

@@ -6,7 +6,7 @@
   <p class="text-secondary">
     <%= t(".message",
           inviter: @invitation.inviter.display_name,
-          role: t("invitations.new.role_#{@invitation.role}")) %>
+          role: t("invitations.new.role_#{@invitation.role}", default: @invitation.role.to_s.humanize)) %>
   </p>
 </div>
 

app/views/invitations/new.html.erb

@@ -11,6 +11,7 @@
       <%= form.select :role,
         options_for_select([
           [t(".role_member"), "member"],
+          [t(".role_guest", default: "Guest"), "guest"],
           [t(".role_admin"), "admin"]
         ]),
         {},