add btn-default class to show-tag-info button

add btn-default class to show-tag-info button

diff --git a/app/assets/javascripts/discourse/app/templates/tags/show.hbs b/app/assets/javascripts/discourse/app/templates/tags/show.hbs
index 8e4f245..909b20a 100644
--- a/app/assets/javascripts/discourse/app/templates/tags/show.hbs
+++ b/app/assets/javascripts/discourse/app/templates/tags/show.hbs
@@ -43,7 +43,7 @@
         }}
 
         {{#if showToggleInfo}}
-          {{d-button icon="tag" label="tagging.info" action=(action "toggleInfo") id="show-tag-info"}}
+          {{d-button icon="tag" class="btn-default" label="tagging.info" action=(action "toggleInfo") id="show-tag-info"}}
         {{/if}}
       </section>
     </div>

GitHub sha: 82c5d85e