docs: add SSR to Hilla FAQ

[landsman]

Resolving: #3385

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[landsman]

I am not able to see what goes wrong on AWS, can someone check it please?
cc @jouni, @tomivirkki

Btw: It would be good to have build in GitHub Actions for these situations to let me handle it. Then send artifacts to AWS.

[jouni]

The preview builds are useless at the moment, they don't work for any PRs. And only our IT department has access to that AWS build, to check why they fail.

@landsman, thanks for the suggestion, about doing the build with GH Actions instead. I assume Java and Maven are no problem, and we could run the build here. I’ll try to get that running eventually.

[landsman]

@jouni thanks, it is actually even free for OSS project I think. Let me know if I can help with that - I did many github actions workflows similar to this.