Add default container to "Always open this site in..."

[miguelbrandao]

It is possible to set a website to always open in a container by going to "Always open this website in..."

However, it doesn't list the default container as an option, which is useful sometimes.

To give my use case as an example: I use Github on the default container, but all Google websites are set to open in container X. When I click on a Github search result, Github opens in container X instead of the default container. I imagine variations of this use case might be common.

Since the default container appears as an option in the menu "Reopen this website in...", it could also appear as an option to always open a website in it.