fix resizing upon winch events

[williamvds]

shutil.get_terminal_size doesn't seem to update when threading is involved so just use os.get_terminal_size instead.

I'm using: GNU/Linux (Arch distro) Python 3.8.1 pulsemixer 1.5.1

I've tried using several terminal emulators, with and without tmux, and in each of these scenarios pulsemixer refuses to resize when I resize my terminal emulator window or tmux pane. This is a pretty simple fix, so hopefully it's acceptable.

[sotpapathe]

I don't seem to encounter this issue with either the old or the new version. Maybe it was fixed at some later Python version? I'm using Python 3.8.2.

[williamvds]

I'm now using Python 3.8.4 and still encountering this issue, so it doesn't seem to have been fixed through Python itself. This could be a Wayland issue, I'll try it on X11.

[sotpapathe]

Good point. I'm on X11.

[williamvds]

Just tried this on XFCE4: issue occurs without patch, but doesn't occur with patch

[williamvds]

This has been resolved on my system for a while now. I don't know when it was fixed or what the root cause was, but I'll close this anyhow.