docs: Add dark mode support

Author: EnriqueSoria

mkdocs.yml

@@ -6,8 +6,31 @@ theme:
   feature:
     tabs: false
   palette:
-    primary: green
-    accent: green
+    # Palette toggle for automatic mode
+    - media: "(prefers-color-scheme)"
+      primary: green
+      accent: green
+      toggle:
+        icon: material/brightness-auto
+        name: Switch to light mode
+
+    # Palette toggle for light mode
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      primary: green
+      accent: green
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+
+    # Palette toggle for dark mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: green
+      accent: green
+      toggle:
+        icon: material/brightness-4
+        name: Switch to system preference
   font:
     text: Roboto
     code: Roboto Mono