header remove language

        <li>
          <div class="lang">

            <%= form_tag language_settings_path do %>
              <%= select_tag :settings_language, options_for_select([['Руский', :ru],['English', :en]], @current_lang), onchange: "this.form.submit()" %>
            <% end %>
          </div>
        </li>

        and

        commite language in the route
change default language for eng
add analytics, and metrika