message: Change `PowerPreference` from `default()` to `LowPower`
  There is no reason to hide the fact that this is always in `LowPower` mode
diff: @@ -27,7 +27,7 @@ impl Compositor {
  let adapter = instance
  .request_adapter(&wgpu::RequestAdapterOptions {
  power_preference: if settings.antialiasing.is_none() {
  - wgpu::PowerPreference::default()
  + wgpu::PowerPreference::LowPower
  } else {
  wgpu::PowerPreference::HighPerformance
  },
  