[+] Check for newer xfce4-term config

[BKasin]

Description

xfce4-terminal has recently switched config formats, so check for the new config file and fallback to the old one if it is now found.

Relevant Links

213

Additional context

@McKristoffer can you please double check that this works for you? If it does I'll merge it.

[EngineerDali]

It works flawlessly, thank you so much! :)

[hykilpikonna]

@BKasin Thank you so much for adding the support!