fix: #25 dependencies and feat: #10 redirect to current song

[42willow]

PR #16 works fine locally but doesn't work on Vercel.

Adding this: vercel.json

{
    "routes": [{
        "src": "/api/(.*)",
        "dest": "api/index.py"
    }]
}

fixed the issue

Working deployment: https://spotify-readme-8i1rak5nw-42willows.vercel.app/api

[vercel[bot]]

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[42willow]

@dedomil

[xydv]

This looks better, will close my pull request as this one works as expected!

[tthn0]

The outdated dependencies and #10 will be addressed in the next commit.