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",

website/app.js

@@ -446,7 +446,6 @@ document.addEventListener('DOMContentLoaded', () => {
 
     // Dynamically localize home links on root dynamic pages (impressum, datenschutz, join)
     const localizeHomeLinks = () => {
-        const html = document.documentElement;
         const activeLang = localStorage.getItem('koala_lang') || (navigator.language.startsWith('de') ? 'de' : 'en');
         const path = window.location.pathname;
         const pathSegments = path.split('/');

website/www/app.js

@@ -446,7 +446,6 @@ document.addEventListener('DOMContentLoaded', () => {
 
     // Dynamically localize home links on root dynamic pages (impressum, datenschutz, join)
     const localizeHomeLinks = () => {
-        const html = document.documentElement;
         const activeLang = localStorage.getItem('koala_lang') || (navigator.language.startsWith('de') ? 'de' : 'en');
         const path = window.location.pathname;
         const pathSegments = path.split('/');