Launcher 8.0 path patch (#2)

* Change path for the new 8.0 launcher 

from tcheneau@5afd438

* Update default.nix

Typo correction

* Update default.nix

Believed that binary-name variable was used everywhere.

fix binaryName for non-prod channels

update readme

Update README.md

Reintroduced standalone Xorg session

Release drv-v0.12.0

Added support for AMDGPU drirc fix

Moved the desktop definition in derivation itself to permit the usage…

… directly

Refactored the wrapper to handle compton properly

Fixed forced compton on lauching from a standard session