systemd: Prevent lomiri & lomiri-system-compositor from OOM-dying
When a user application grabs too much memory and causes a system-wide OOM situation, devices with in-kernel OOM killers might choose to kill either lomiri or the system compositor. This should not be allowed to happen, so set OOMScoreAdjust=-1000 as overrides in systemd units of both services.
Fixes: #28 (closed)