fix: bring back parts of 17911b99

The more verbose messages still make sense.
Letting users remove themselves from pages owned by groups aswell.

app/policies/user/participation_policy.rb

@@ -11,7 +11,11 @@ class User::ParticipationPolicy < ApplicationPolicy
     elsif participation.user_id == page.owner_id and page.owner_type == 'User'
       false
     else
-      user.may_admin_page_without?(page, participation)
+      # FIXME: this is too restrictive, users should be able to remove
+      # themselves from pages if they are not page owners (which is
+      # tested above)
+      # user.may_admin_page_without?(page, participation)
+      true
     end
   end
 

config/en.yml

@@ -397,7 +397,8 @@ en:
   group_successfully_created: Group was successfully created.
   join_group_confirmation: Are you sure you want to join this %{group_type}?
   join_group_link: Join %{group_type}
-  leave_group_confirmation: Are you sure you want to leave this %{group_type}?
+  leave_group_confirmation: Are you sure you want to leave this %{group_type}? You will
+    loose access to all pages owned by this %{group_type}.
   leave_group_link: Leave %{group_type}
   link_name_description: This name is how you will refer to this group in links and
     URLs. It must only contain alphanumeric characters, no spaces allowed.

config/locales/en/groups.yml

@@ -89,7 +89,7 @@ en:
   group_successfully_created: "Group was successfully created."
   join_group_confirmation: "Are you sure you want to join this %{group_type}?"
   join_group_link: "Join %{group_type}"
-  leave_group_confirmation: "Are you sure you want to leave this %{group_type}?"
+  leave_group_confirmation: "Are you sure you want to leave this %{group_type}? You will loose access to all pages owned by this %{group_type}."
   leave_group_link: "Leave %{group_type}"
   link_name_description: "This name is how you will refer to this group in links and URLs. It must only contain alphanumeric characters, no spaces allowed."
   network_initial_member: "Choose an organization to be an initial member of this network."