Compatibility with PHP 8.1

[JiveDig]

Hey Tonya! I still use this plugin daily, and recommend it for debugging/tracing/etc when theme customers need an easy way to see and screenshot errors and traces. Any chance we can get an update with compatibility?

I forked and am trying to get it to work here, but now it's breaking on PHP 7. I used Composer for basic stuff, but clearly I'm missing something now ;P