Clean up.

src/context/dependency.rs

@@ -41,7 +41,7 @@ impl Dependency {
                 }
                 Ok(())
             }
-            Dependency::CssFile { name } => {
+            Dependency::CssFile { name: _ } => {
                 // We don't do anything because the CSS files are already copied into the output from natter's default environment.
                 // TODO: When we add support for CSS outside the default environment, we should add support for dynamically picking which ones to copy here.
                 Ok(())