fix: wrap long text on multiple rows

[v-alexmoraru]

When print_output_format rendered a table with show_headers=True and long column values, rows exceeded the terminal width causing headers and values to appear misaligned or off-screen.

• Added _wrap_text helper that splits text into lines respecting visual width
• Updated _format_unix_style_field and _format_unix_style_entry to return list[str] — one line per wrapped row — instead of a single potentially overflowing string
• Updated print_entries_unix_style to cap column widths proportionally to fit the terminal and print each new row