OVRAS will not run on Gentoo due to QT5 has been removed from the distro

[xiaoxi654]

Describe the bug
As the title said, Gentoo has removed QT5 from the distro software repo, and OVRAS depends on it.

To Reproduce
Steps to reproduce the behavior:

1. Run AppImage
2. The log shown /home/xiaoxi/.local/share/Steam/steamapps/common/SteamVR/bin/linux64/vrmonitor: error while loading shared libraries: libQt5Core.so.5: cannot open shared object file: No such file or directory

Expected behavior
OVRAS should just works.

Software (please complete the following information):

• OS: Gentoo (Rolling)
• Advanced Settings Version: 5.8.17 (31df8b4)

Hardware (please complete the following information):

• CPU: AMD Ryzen 7 5800H
• Graphics Card: NVIDIA GeForce 3050 Ti Laptop
• HMD: Oculus Quest 2

Additional context
Complete #656 may close this issue?

[xiaoxi654]

Well, turned out it's SteamVR running without it's library :(