Display enabled flavors

[eabdullin1]

We need to make the enabled flavors visible in the build.
Currently, this information is not displayed on the build page and can only be retrieved via the browser’s console.

[eabdullin1]

It would also be great to add this information to the main page so that we can immediately see which flavors are used in each build.

[anfimovdm]

Resolved by AlmaLinux/albs-frontend#600