feat(docs): add light/dark mode toggle to MkDocs configuration

- Configured palette toggles for light and dark modes in Material theme.
- Included icons and descriptive labels for better user experience.

Author: j-d-ha

mkdocs.yml

@@ -18,6 +18,19 @@ theme:
     - content.tabs.link
     - navigation.footer
     - navigation.top
+    
+  palette:
+    # Palette toggle for light mode
+    - scheme: default
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+    
+    # Palette toggle for dark mode
+    - scheme: slate
+      toggle:
+        icon: material/brightness-4
+        name: Switch to light mode
 
 markdown_extensions:
   # Python Markdown extensions