fix(eslint): resolve all 6 repository lint errors

- Removed unused html variable from localizeHomeLinks in website/app.js.
- Added website/build.js to ESLint flat config Node files match pattern to define require, process, and __dirname.

eslint.config.mjs

@@ -54,7 +54,7 @@ export default [
     }
   },
   {
-    files: ["server/**/*.js", "scripts/**/*.js"],
+    files: ["server/**/*.js", "scripts/**/*.js", "website/build.js"],
     languageOptions: {
       globals: {
         require: "readonly",