muvm hangs on exit when not attached to a tty

[chadmed]

When not attached to a TTY, muvm seems to hang on exit and spin up its threads. A simple repro:

1. Create a desktop entry that calls this script:

#!/bin/bash
exec muvm glxgears

and reload the XDG desktop database
2. Run the desktop entry
3. Observe that glxgears eventually starts
4. Close the glxgears window
5. Observe using a system monitor (top, htop, etc) that muvm hangs on exit and spins on all bound cores

This only occurs when launching muvm without a tty. Setting Terminal=true in the desktop entry fixes this behaviour, however has the downside of spawning a terminal emulator on every open.

Tested on a base M2 with muvm 0.1.4 and 0.2.0.

[chadmed]

Using muvm -t does not help

[Nyaacinth]

I can confirm the same issue. Adding Terminal=true to desktop file did solve the issue, but is not convenient.