Replace gethostbyname() with getaddrinfo() or getnameinfo()

# Current state:
`gethostbyname()` has long been obsolete and `getaddrinfo()` or `getnameinfo()` should be used instead.

# Wanted state:
Use `getaddrinfo()` or `getnameinfo()` in https://github.com/LinusDierheimer/fastfetch/blob/master/src/detection/title.c#L30

# Why the change is sensible:
`gethostbyname()` has been obsolete for man years.