fix(apis_entities): set target of merge link to correct route

The merge url was fixed in 0088fc6, but this fix was reverted in e01f3f4
during a "refactoring". This commit sets it back to the correct value.

Closes: #1374

apis_core/apis_entities/templates/apis_entities/partials/entity_actions_nav.html

@@ -14,7 +14,8 @@
                href="{{ object.get_duplicate_url }}">
               <span class="material-symbols-outlined material-symbols-align">content_copy</span> Duplicate
             </a>
-            <a class="object-merge dropdown-item" href="{{ object.get_merge_url }}">
+            <a class="object-merge dropdown-item"
+               href="{{ object.get_merge_view_url }}">
               <span class="material-symbols-outlined material-symbols-align">cell_merge</span> Merge
             </a>
           {% endif %}