Merge branch 'issue-15154' into 'rails'

Issue #15154

See merge request sutty/sutty!249

app/policies/site_usuarie_policy.rb

@@ -36,8 +36,7 @@ class SiteUsuariePolicy
   end
 
   def accept_invitation?
-    su = site_usuarie
-    (usuarie? || invitade?) && su.usuarie.rol_for_site(su.site).temporal
+    !!site_usuarie.usuarie.rol_for_site(site_usuarie.site)&.temporal
   end
 
   def reject_invitation?

app/views/sites/index.haml

@@ -15,15 +15,18 @@
       %tbody
         - @sites.each do |site|
           - next unless site.jekyll?
+
           %tr
             %td
               %h2
                 - if policy(site).show?
-                  = link_to site.title, site_posts_path(site, locale: site.default_locale)
+                  = link_to site.title,
+                            site_posts_path(site,
+                                            locale: site.default_locale)
                 - else
                   = site.title
               %p.lead= site.description
-              %br
+              .d-flex.flex-row
                 = link_to t('.visit'), site.url, class: 'btn btn-secondary'
                 - if current_usuarie.rol_for_site(site).temporal?
                   = render 'components/btn_base',