feat: enable marketing site feature in CMS and LMS configurations

Author: ktyagiapphelix2u

configuration_files/cms.yml

@@ -383,7 +383,7 @@ MAINTENANCE_BANNER_TEXT: Sample banner message
 MEDIA_ROOT: /edx/var/edxapp/media/
 MEDIA_URL: /media/
 MKTG_URLS:
-  ROOT: http://localhost:18010
+  ROOT: ""
   ABOUT: /about
   CONTACT: /contact
   FAQ: /help

configuration_files/lms.yml

@@ -423,7 +423,7 @@ MAINTENANCE_BANNER_TEXT: Sample banner message
 MEDIA_ROOT: /edx/var/edxapp/media/
 MEDIA_URL: /media/
 MKTG_URLS:
-  ROOT: http://localhost:18000
+  ROOT: ""
   ABOUT: /about
   CONTACT: /contact
   FAQ: /help