Add header-aside module position to the right of the logo

- New position renders inside .header-brand-wrap, right-aligned via
  margin-inline-start: auto on .container-header-aside
- CSS: .header-brand-wrap uses flexbox so logo stays left, aside floats right
- Registered in templateDetails.xml positions list
- Language strings added to both en-US and en-GB sys.ini files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/templateDetails.xml

@@ -67,6 +67,7 @@
 		<position>topbar</position>
 		<position>below-topbar</position>
 		<position>below-logo</position>
+		<position>header-aside</position>
 		<position>menu</position>
 		<position>search</position>
 		<position>banner</position>