[Bug Report] OpenSnitch-UI struggle to start on XFCE, when SESSION_MANAGER env. variable is set

### Describe the bug:
In certain conditions, when start OpenSnitch-UI under XFCE session, it fails to start after a minute, consuming CPU in background, and terminates without showing UI. In this situation there is following terminal error message:

ICE default IO error handler doing an exit(), pid = 68995, errno = 32
(PID can differ)

A sort of workaround is unset SESSION_MANAGER env. variable for opensnitch-ui, but it's difficult to do for autostart entry, cause osui overrides it every start, only for launcher cgange permanent.

Include the following information:
- OpenSnitch version: 1.7.2
- OS: Arch Linux
- OS version: Rolling, recently updated
- Window Manager: xfwm4
- Kernel version: 6.17.11/6.18

### To Reproduce:
Logim in XFCE and waitt for OpenSnitch-UI launch. UI could not launch.

Steps to reproduce the behavior:
1. Login in XFCE
2. Wait for autostart/launch manually OpenSnitch-UI
3. Wait for UI appear
4. Deal with error (described above, in terminal)

### Post error logs:

### Expected behavior (optional):

### Screenshots:

### Additional context: