Convert comparisons more towards the modern namespace form.

comparisons.h

@@ -11,19 +11,15 @@ static_assert( __cplusplus > 2020'99 );
 #include <Alepha/Capabilities.h>
 
 
-namespace Alepha::Hydrogen
+namespace Alepha::Hydrogen  ::detail
 {
-	namespace detail::comparisons_m
+	namespace comparisons_m::inline exports
 	{
-		inline namespace exports {}
-
 		struct comparable {};
+	}
 
-		namespace exports
-		{
-			using detail::comparisons_m::comparable;
-		}
-
+	namespace comparisons_m
+	{
 		template< typename T >
 		concept LensComparable= HasCapability< T, comparable >;