Patch and NixOS overlay to add support for starlight mode on the Mid 2017 Razer Blade Stealth to OpenRazer

fix-starlight.patch

diff --git a/driver/razerkbd_driver.c b/driver/razerkbd_driver.c
index 909a797..a209cfc 100644
--- a/driver/razerkbd_driver.c
+++ b/driver/razerkbd_driver.c
@@ -1242,6 +1242,7 @@ static ssize_t razer_attr_write_mode_starlight(struct device *dev, struct device
         }
         break;
 
+    case USB_DEVICE_ID_RAZER_BLADE_STEALTH_MID_2017:
     case USB_DEVICE_ID_RAZER_BLADE_STEALTH_LATE_2017:
         if(count == 7) {
             report = razer_chroma_standard_matrix_effect_starlight_dual(VARSTORE, BACKLIGHT_LED, buf[0], (struct razer_rgb*)&buf[1], (struct razer_rgb*)&buf[4]);

overlay.nix

self: super:
{
  linuxPackages_latest = super.linuxPackages_latest.extend (lpSelf: lpSuper: {
    openrazer = lpSuper.openrazer.overrideAttrs (old: rec {
      patches = (old.patches or [ ]) ++ [ ./fix-starlight.patch ];
    });
  });
}