fix translation text

Author: adelowo

options/locale/locale_en-US.ini

@@ -1014,7 +1014,7 @@ settings.transfer_succeed = The repository has been transferred.
 settings.confirm_delete = Delete Repository
 settings.add_collaborator = Add Collaborator
 settings.add_collaborator_success = The collaborator has been added.
-settings.add_collaborator_inactive_user = Cannot add an inactive user as a collaborator.
+settings.add_collaborator_inactive_user = Can not add an inactive user as a collaborator.
 settings.delete_collaborator = Remove
 settings.collaborator_deletion = Remove Collaborator
 settings.collaborator_deletion_desc = Removing a collaborator will revoke their access to this repository. Continue?