DEV: add tag-navigation plugin outlet (#12814)

DEV: add tag-navigation plugin outlet (#12814)

Adds a plugin outlet to the tag template to match the category-navigation outlet on category pages (using this for a customer theme component).

diff --git a/app/assets/javascripts/discourse/app/templates/tags/show.hbs b/app/assets/javascripts/discourse/app/templates/tags/show.hbs
index 0837c85..180cd0e 100644
--- a/app/assets/javascripts/discourse/app/templates/tags/show.hbs
+++ b/app/assets/javascripts/discourse/app/templates/tags/show.hbs
@@ -21,6 +21,12 @@
           changeTagNotificationLevel=(action "changeTagNotificationLevel")
           toggleInfo=(action "toggleInfo")
           }}
+
+          {{plugin-outlet
+            name="tag-navigation"
+            args=(hash category=category tag=tag)
+            tagName=""
+          }}
       </section>
     </div>
   </div>

GitHub sha: abbb3a6b

This commit appears in #12814 which was approved by CvX. It was merged by CvX.