Refactor req.accepts to utilize rest parameters for better argument handling

[Ayoub-Mabrouk]

• The function signature has been updated to accept a variable number of type arguments using the spread operator (...types).
• The internal logic now directly invokes accepts(this).types(...types), simplifying the code and improving readability.

[Abdel-Monaam-Aouini]

/**
 * Determines if the specified MIME type(s) are acceptable based on the request's `Accept` header.
 * Returns the best match if a type is acceptable; otherwise, returns `undefined`.
 * If no acceptable type is found, the server should respond with a 406 "Not Acceptable".
 *
 * The `type` argument can be a:
 * - Single MIME type string (e.g., "application/json")
 * - Extension name (e.g., "json")
 * - Comma-delimited list of types (e.g., "json, html, text/plain")
 * - Argument list (e.g., `"json", "html", "text/plain"`)
 * - Array of types (e.g., `["json", "html", "text/plain"]`)
 *
 * The function returns the best match if any is found, otherwise `undefined`.
 *
 * Examples:
 *
 *     // Accept: text/html
 *     req.accepts('html');
 *     // => "html"
 *
 *     // Accept: text/*, application/json
 *     req.accepts('html');
 *     // => "html"
 *     req.accepts('text/html');
 *     // => "text/html"
 *     req.accepts('json, text');
 *     // => "json"
 *     req.accepts('application/json');
 *     // => "application/json"
 *
 *     // Accept: text/*, application/json
 *     req.accepts('image/png');
 *     req.accepts('png');
 *     // => undefined
 *
 *     // Accept: text/*;q=.5, application/json
 *     req.accepts(['html', 'json']);
 *     req.accepts('html', 'json');
 *     req.accepts('html, json');
 *     // => "json"
 *
 * @param {String|Array} types - A single type, list of types, or array of types to check against the `Accept` header.
 * @return {String|undefined} - The best matching type, or `undefined` if no match is found.
 * @public
 */

add this docs please

[Abdel-Monaam-Aouini]

write some tests please :)