fix: make docs website compatible with phones

[andrinoff]

What?

Documentation website needs to be compatible with phones, collapsing the sidebar

Why?

Very hard to read from a phone

[floatpanebot]

❌ Security failed

Commit: 6be9df7 · run logs

Failed jobs:

• govulncheck — Run govulncheck ./... and update vulnerable deps.

Failure details

Build errors:

• 2026-06-08T10:10:29.2534254Z ##[error] #1: internal/source/source.go:91: source.fetch calls io.ReadAll, which eventually calls textproto.Reader.ReadMIMEHeader
• 2026-06-08T10:10:29.2549910Z ##[error] #1: termimage.go:134: termimage.Clear calls bufio.Writer.Flush, which eventually calls x509.Certificate.Verify
• 2026-06-08T10:10:29.2552637Z ##[error] #2: termimage.go:134: termimage.Clear calls bufio.Writer.Flush, which eventually calls x509.Certificate.VerifyHostname
• 2026-06-08T10:10:29.2555120Z ##[error] #3: termimage.go:123: termimage.Clear calls fmt.Fprint, which eventually calls x509.HostnameError.Error
• 2026-06-08T10:10:29.2534238Z ##[error] #1: internal/source/source.go:91: source.fetch calls io.ReadAll, which eventually calls textproto.Reader.ReadMIMEHeader
• 2026-06-08T10:10:29.2549902Z ##[error] #1: termimage.go:134: termimage.Clear calls bufio.Writer.Flush, which eventually calls x509.Certificate.Verify
• 2026-06-08T10:10:29.2552628Z ##[error] #2: termimage.go:134: termimage.Clear calls bufio.Writer.Flush, which eventually calls x509.Certificate.VerifyHostname
• 2026-06-08T10:10:29.2555112Z ##[error] #3: termimage.go:123: termimage.Clear calls fmt.Fprint, which eventually calls x509.HostnameError.Error