hide emails from unauthorized mods (fix #34)

lib/philomena_web/templates/admin/user/index.html.slime

@@ -46,7 +46,10 @@ h1 Users
               - true ->
 
           td
+            = if can?(@conn, :edit, Philomena.Users.User) do
               = user.email
+            - else
+              i N/A
 
           td
             = cond do
@@ -67,8 +70,10 @@ h1 Users
             = pretty_time user.created_at
 
           td
-            => link "Edit", to: Routes.admin_user_path(@conn, :edit, user)
+            = if can?(@conn, :edit, Philomena.Users.User) do
-            ' •
+              => link to: Routes.admin_user_path(@conn, :edit, user) do
+                i.fa.fa-fw.fa-user-edit
+                ' Edit
 
             /= if user.deleted_at do
             /  => link_to 'Reactivate', admin_user_activation_path(user), data: { confirm: t('are_you_sure') }, method: :create
@@ -76,9 +81,14 @@ h1 Users
             /  => link_to 'Deactivate', admin_user_activation_path(user), data: { confirm: t('are_you_sure') }, method: :delete
             /' •
 
-            => link "Ban", to: Routes.admin_user_ban_path(@conn, :new, username: user.name)
+            = if can?(@conn, :index, Philomena.Bans.User) do
-            ' •
+              => link to: Routes.admin_user_ban_path(@conn, :new, username: user.name) do
-            => link "Add link", to: Routes.profile_user_link_path(@conn, :new, user)
+                i.fa.fa-fw.fa-ban
+                ' Ban
+            = if can?(@conn, :edit, Philomena.UserLinks.UserLink) do
+              => link to: Routes.profile_user_link_path(@conn, :new, user) do
+                i.fa.fa-fw.fa-link
+                ' Add link
 
   .block__header.block__header--light
     = pagination