Adds notification menu and message for empty notifications

app/views/proposals/_comments.html.erb

@@ -2,13 +2,6 @@
   <section class="comments">
     <div class="row">
       <div id="comments" class="small-12 column">
-        <% if @notifications.blank? %>
-          <h2>
-            <%= t("proposals.show.comments_title") %>
-            <span class="js-comments-count">(<%= @proposal.comments_count %>)</span>
-          </h2>
-        <% end %>
-
         <%= render 'shared/wide_order_selector', i18n_namespace: "comments" %>
 
         <% if user_signed_in? %>

app/views/proposals/_notifications.html.erb

@@ -1,6 +1,12 @@
 <div class="tabs-panel" id="tab-notifications">
   <div class="row">
     <div class="small-12 column">
+      <% if @notifications.blank? %>
+        <div class="callout primary text-center">
+          <%= t('proposals.show.no_notifications') %>
+        </div>
+      <% end %>
+
       <% @notifications.each do |notification| %>
         <h3><%= notification.title %></h3>
         <p class="more-info"><%= notification.created_at.to_date %></p>

app/views/proposals/show.html.erb

@@ -124,10 +124,8 @@
 <% end %>
 
 <div class="tabs-content" data-tabs-content="example-tabs">
-  <% if @notifications.present? %>
-    <%= render "proposals/filter_subnav" %>
-    <%= render "proposals/notifications" %>
-  <% end %>
+  <%= render "proposals/filter_subnav" %>
+  <%= render "proposals/notifications" %>
 
   <div class="tabs-panel is-active" id="tab-comments">
     <%= render "proposals/comments" %>