feat: navigation button links to enclosing namespace

Author: fpelliccioni

share/mrdocs/addons/generator/adoc/layouts/wrapper.adoc.hbs

@@ -9,7 +9,7 @@
 
     Breadcrumbs are included in the symbol template as an alternative.
 }}
-= {{> symbol/qualified-name symbol }}
+= {{> symbol/enclosing-namespace symbol }}{{> symbol/qualified-name symbol }}
 {{!
     Antora does not support relative links to pages in
     parent directories. Therefore, unlike in HTML templates,

share/mrdocs/addons/generator/common/partials/symbol/enclosing-namespace.hbs

@@ -0,0 +1,14 @@
+{{!--
+    Renders a link to the enclosing namespace with a custom symbol (⬆).
+    If no enclosing namespace exists, nothing is rendered.
+
+    Expected Context: {Symbol Object}
+
+    Example:
+        {{> symbol/enclosing-namespace symbol }}
+
+    See: https://mrdocs.com/docs/mrdocs/develop/generators.html#dom_reference
+--}}
+{{~#if (and parent parent.name)~}}
+    xref:{{{remove_prefix parent.url "/"}}}[⬆]
+{{~/if~}}