Fix the exception of missing "current_time"

[seanxlgit]

Got an error when query the IP tracker. The problem was on line 77 of file "GhostTR.py" where the code tried to access ip_data["timezone"]["current_time"] directly, but the API response doesn't always include the current_time key.
I propose to change it to use .get() with a default value:

`print(f"{Wh} Current Time :{Gr}", ip_data.get("timezone", {}).get("current_time", "N/A"))`

This should handle the exceptions of missing "current_time".