Upgrade and typescript version

[muka]

Hello
I worked on client and server to upgrade deps and migrated to typescript. Also integrated some older PR.

• Typscript version and upgrade localtunnel#709
• Typscript version and upgrade #226

@defunctzombie is something you would consider merge ?

Thank you

[defunctzombie]

@muka I don't maintain this package anymore. Maybe @TheBoroer is still maintaining?

[TheBoroer]

Thanks for those PR's @muka 🙏
Sorry I've been super busy but I'll definitely review and test out your PRs (along with a couple others) as soon as I can

[TheBoroer]

@defunctzombie can you give me access to this server repo too? I only have access to the client repo. Thank you!

[defunctzombie]

@TheBoroer done

[agentx44]

Could this merge be the fix for issue #220 ?