Plex add-on for kodi version 0.3.4 has old issue : isAlive should be is_alive

Description:

[ ] I have included a link to a log (or at the very least a link to a forum post with a log) from a session that had the issue
[ ] I have added appropriate GitHub labels

2022-03-06 14:25:54.467 T:840 ERROR : EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--

NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS! Error Type: <class 'AttributeError'> Error Contents: 'KillableThread' object has no attribute 'isAlive' Traceback (most recent call last): File "/storage/.kodi/addons/script.plex/lib/windows/kodigui.py", line 105, in onInit self.onFirstInit() File "/storage/.kodi/addons/script.plex/lib/windows/home.py", line 358, in onFirstInit if self.serverRefresh(): File "/storage/.kodi/addons/script.plex/lib/windows/busy.py", line 20, in inner return func(*args, **kwargs) File "/storage/.kodi/addons/script.plex/lib/windows/home.py", line 583, in serverRefresh backgroundthread.BGThreader.reset() File "/storage/.kodi/addons/script.plex/lib/backgroundthread.py", line 225, in reset if self.threader._queue.empty() and not self.threader.hasTask(): File "/storage/.kodi/addons/script.plex/lib/backgroundthread.py", line 198, in hasTask return any([w.working() for w in self.workers]) File "/storage/.kodi/addons/script.plex/lib/backgroundthread.py", line 198, in return any([w.working() for w in self.workers]) File "/storage/.kodi/addons/script.plex/lib/backgroundthread.py", line 135, in working return self._thread and self._thread.isAlive() AttributeError: 'KillableThread' object has no attribute 'isAlive' -->End of Python script error report<--

Changing isAlive to is_alive in all the Phyton files fixes this issue.

Dont know if this issue falls into the right dev-group, just wanted to let you guys know there is an issue and fixable :-) Cheers Freek