<% classes = %w(list-group-item list-group-action message-headers) %>
<% classes << 'active' if active %>
<%= link_to(letter_path(letter, style: letter.default_style), class: classes, target: 'mail') do %>
  <%= letter.headers %>
<% end %>

<% classes = %w(list-group-item list-group-action message-headers p-2) %>
<% classes << 'active' if active %>
<%= link_to(letter_path(letter, style: letter.default_style), class: classes, target: 'mail') do %>
  <%= letter.headers %>
<% end %>

Remove some padding from emails list on the sidebar
Remove some padding from emails list on the sidebar
