fix(input): improve askStdin handling for normal and hidden input

[yaninyzwitty]

• Fixed incorrect use of fmt.Scanf("%s", &answers[i]) which prevented proper input reading
• Switched to bufio.Reader for echoed input to support multi-word answers
• Continued using term.ReadPassword(int(os.Stdin.Fd())) for hidden input for portability
• Trimmed whitespace from all answers for cleaner results

This ensures askStdin correctly handles both normal inputs (with spaces) and secure password inputs across platforms (even windows).

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[yaninyzwitty]

Please review my commit