Don't show hidden for single_thread and single_remark

lib/PostText/Model/Remark.pm

@@ -87,7 +87,8 @@ sub by_id($self, $remark_id) {
                remark_body             AS body,
                thread_id
           FROM remarks
-         WHERE remark_id = ?;
+         WHERE remark_id = ?
+           AND NOT hidden_status;
        END_SQL
 }
 

lib/PostText/Model/Thread.pm

@@ -82,6 +82,7 @@ sub by_id($self, $thread_id) {
           LEFT JOIN remarks AS r
             ON t.thread_id = r.thread_id
          WHERE t.thread_id = ?
+           AND NOT t.hidden_status
          GROUP BY t.thread_id;
        END_SQL
 }

templates/thread/by_id.html.ep

@@ -38,7 +38,7 @@
   </article>
 </main>
 <% } =%>
-<% if (scalar @{$remarks}) { =%>
+<% if (keys %{$thread} && scalar @{$remarks}) { =%>
 <section class="pager" id="remarks">
   <h3 class="pager__title">Remarks</h3>
   <% for my $remark (@{$remarks}) { =%>