feat: integrate Google AdSense and consolidate head elements into a new partial.

config.toml

@@ -109,6 +109,10 @@ style = "github-dark"
     # Enable math rendering (for LaTeX support including $$$$ blocks)
     math = true
 
+    # AdSense Configuration
+    [params.adsense]
+        client = "ca-pub-3972604619956476"
+
 # Add new SEO-related parameters
 [params.seo]
     # Enable OpenGraph for better social media sharing