[BUG] - SteamOS autodetect

[Azim]

Describe the bug
path to steam folder didnt autodetect on steamos

To Reproduce
Steps to reproduce the behavior:

1. Install fresh steamOS on the device of choice (likely steamdeck)
   1.1 Install silksong or any other linux native game
2. Make steamOS no longer readonly
3. Install and launch r2modman
4. Choose game from 1.1
5. Observe the bug

Expected behavior
Automatic detection of steam install folder

Additional context
Game folder also didnt detect, and it wouldnt accept the executable until i restarted r2modman with the steam folder manually set