doc: zephyr_domain: Show code samples after doxygengroups

Minor cosmetic update post Breathe removal

Signed-off-by: Benjamin Cabé <[email protected]>

doc/_extensions/zephyr/domain.py

@@ -310,7 +310,7 @@ def run(self) -> List[Node]:
         nodes = super().run()
 
         if self.config.zephyr_breathe_insert_related_samples:
-            return [RelatedCodeSamplesNode(id=self.arguments[0]), *nodes]
+            return [*nodes, RelatedCodeSamplesNode(id=self.arguments[0])]
         else:
             return nodes