Fixes and improvements

[urosevic]

Found and fixed following issues (tested on PHP 8.4):

1. Prevent $config flat array to be overwritten by report script - IP-Info always fail because INI parser from the abuseipdb script overwrites a flat config array with a multy-dimensional config array
2. Change: Hide login form when user is logged in - once admin log in, no need to keep login form visible.
3. Change: Display IP info notification 20 seconds - 4 seconds for IP info notification was too short to read all info
4. Add missing JS asset - ufw-report.js was not in git
5. Refactor: update require_once paths for consistency across action files - use $PATHS['config'] and basename(DIR) where appropriate
6. Fix: string interpolation does not directly support the null coalescing operator - fix PHP error unexpected token "??", expecting "->" or "?->" or "["
7. Fix: favicon URL

Cheers

[SubleXBle]

Hi, thank you, appreciate it a lot, I will look at it by next week as I am in hospital right now.

[urosevic]

No rush. Get well soon!