Device order isn't constant when plugging in, mounting and unmounting

Submitted by Yousuf Philips @philipzae

Assigned to Xfce Bug Triage

Link to original bug (#16709)

Description

The device order in the sidebar both in tree and bookmark view isn't constant and fluctuates when you plugin a device, mount or unmount.

Plugin steps:

1. open thunar
2. plugin in a phone
3. it appears at bottom
4. restart thunar
5. now it appears below File System

Unmount steps:

1. open thunar
2. mount a partition
3. unmount partition
4. notice its now at the bottom of the list

The constant order should be

1. File System
2. Internal Partitions
3. External Partitions (USB/Hard Disk)
4. External Devices

Video: https://youtu.be/GvC7QJMTSrg

Version: git