feat(action): site + example publish

[nobkd]

This is still very much WIP, and completely untested.
I'll try working more on this, sometime next week.

[nobkd]

Okay. The approach with pages won't work (because you can only define one domain for deploy).
But we can probably just compress our generated files push them over to the server via key based ssh and gh secrets and then unpack the files on the other side. (of course you could leave out the compression step, but it's probably much less space and time needed for transfer then.)

I'll rework this pr a bit and the we only need to add secrets containing the sensitive data.

[nobkd]

I might have to still add some code until the next release, so the example unpacking doesn't break.

Because I changed the unpack logic to not strip the first path segment. so with the change, the RC version would strip a path segment too much, cause the archives don't include the directory anymore.

Before: super directory simple-blog containing all the files is archived
With this PR: only contents of simple-blog, not the directory itself is archived

I will add that extra logic sometime next week (sorry that this is going forward so slowly), and remove it a while after the next release.

After that, this PR should be ready. It might just need some provider specific tweaks. Depends on how the files are saved on the web server.

I could also try changing the compression strategy back, but I think that might be harder, because I currently use git to only compress versioned files, and also don't include the directory itself.

I think I'm repreating myself, I should go do something different...