Nix Software - Options Page, Optimization, and More

1)Added a page with a list of options.
2)Added a new tab on some package detail pages to view package options.
3)Added the ability to switch the channel on the package detail page.
4)Added a module filter on the catalog page (a module is a package that has options).
5)Significantly improved website performance by optimizing database queries.
6)Redesigned the site header, updated some translations, and made other minor improvements.