<% unless @topics.empty? %>
• <%= link_to "All", root_url, class: "text-decoration-none text-dark" %> <%= Room.count %>
<% @topics.each do |topic| %>
• <%= link_to topic.name, "#{root_url}rooms?q=#{topic.name}", class: "text-decoration-none text-dark" %> <%= topic.rooms.count %>
<% end %> <% end %>