Improve how DNS records are displayed

[sbastn]

This PR improves the formatting of the DNS records:

• Long content no longer flows out of their cell
• Adapts to any resolution

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Before

After

On a different resolution (smaller size):

Summary

• replace the tabwriter-based table renderer with a width-aware renderer that wraps oversized cells
• detect terminal width from the TTY, with a COLUMNS fallback, and keep a test hook for deterministic wrapping
• add regression coverage for long wrapped table cells

QA

• make build
• bin/dnsimple records list jacegu.com

[weppos]

Can you explain why you are branching out table with unix and table with other? What issue did you experience specifically, and in which OS?

[sbastn]

I split it because terminal width detection here uses a Unix-specific call to get the window size of the terminal. It uses the golang.org/x/sys/unix package. That works on macOS/Linux, but it is not portable to Windows or other non-Unix targets, so the other file is just a build-safe fallback.

I didn’t hit an OS-specific runtime bug. The issue was portability: without the split, the output package would stop compiling cleanly outside Unix-like systems.

I developed/tested this on macOS.