hyprsunset: add page (#20695)

Co-authored-by: Ivan Baluta <ivanbaluta.dev@gmail.com>
Co-authored-by: Meinard Francisco <44516102+znarfm@users.noreply.github.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/linux/hyprsunset.md

@@ -0,0 +1,29 @@
+# hyprsunset
+
+> A blue light filter for Hyprland.
+> Optionally configured via `~/.config/hypr/hyprsunset.conf`.
+> More information: <https://wiki.hypr.land/Hypr-Ecosystem/hyprsunset/>.
+
+- Start the hyprsunset service:
+
+`hyprsunset`
+
+- Start the hyprsunset service with a specified color temperature and gamma percentage:
+
+`hyprsunset {{[-t|--temperature]}} {{temperature}} {{[-g|--gamma]}} {{gamma}}`
+
+- Adjust the color temperature while the hyprsunset service is running:
+
+`hyprctl hyprsunset temperature {{temperature}}`
+
+- Adjust the gamma while the hyprsunset service is running:
+
+`hyprctl hyprsunset gamma {{gamma}}`
+
+- Reset the color temperature to 6000K:
+
+`hyprctl hyprsunset reset temperature`
+
+- Reset the gamma to 100%:
+
+`hyprctl hyprsunset reset gamma`