Function format_table 

pub fn format_table(headers: &[&str], rows: &[Vec<&str>]) -> String

Format a simple table with headers and rows

Creates a text table with aligned columns.

Example

let headers = vec!["Name", "Age"];
let rows = vec![
    vec!["Alice", "30"],
    vec!["Bob", "25"],
];
let table = format_table(&headers, &rows);
assert!(table.contains("Name"));
assert!(table.contains("Alice"));