added sync for completed questions

[meta-panic]

Added sync for multiple devices using vs code global storage

According to the discussion

[yrming]

Thanks a lot. Could you try to synchronous solutions as well?

[meta-panic]

Thanks a lot. Could you try to synchronous solutions as well?

I'm not sure if we should use VS Code's built-in sync to store code solutions, as the documentation doesn't explicitly mention the size of the globalStore.

I've been thinking about it, and I really like the solution using https://github.com/shanalikhan/code-settings-sync with GitHub Gist.

Overall, I like the current solution for now. We can review and merge it, and then add options with GitHub Gist/S3 bucket, etc.

What do you think?

[meta-panic]

I have started off the github-gist with solutions sync version, it is based on the current branch, but it might take some time
so up to you to close the MR or let it go

[yrming]

Cool, looking forward to it.