Fix email icon on right section

app/assets/stylesheets/application.css.sass

@@ -2244,6 +2244,7 @@ h1.tag
     .icons-question,
     .icons-monotone_wrench_settings,
     .icons-coffee,
+    .icons-mail,
     .icons-bookmark,
       :position absolute
       :margin-left 3px
@@ -2272,6 +2273,10 @@ h1.tag
       :width  16px
       :height 14px
 
+    .icons-mail
+      :width 16px
+      :height 13px
+
     h5.title-header
       :margin-left 22px
 

app/views/shared/_right_sections.html.haml

@@ -85,8 +85,8 @@
 - if AppConfig.admins.podmin_email.present?
   .section
     .title
-      = image_tag('icons/mail.png')
-      %h5
+      .icons-mail
+      %h5.title-header
         = t('aspects.index.help.any_problem')
     .content
       = t('aspects.index.help.contact_podmin')