Ladybird: Enable rich debug messages on all processes

Android is excluded from this patch because the Android dbgln routes
messages to the NDK logger, which already includes process and time
information.

Ladybird/WebContent/main.cpp

@@ -50,6 +50,8 @@ static ErrorOr<void> initialize_lagom_networking();
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
+    AK::set_rich_debug_enabled(true);
+
 #if defined(HAVE_QT)
     QCoreApplication app(arguments.argc, arguments.argv);