feat(seo): enhance multilingual support and SEO handling

- Added support for multiple languages in the frontend, including English, Spanish, and Cebuano, improving accessibility for a broader audience.
- Implemented hreflang links for better SEO performance, ensuring search engines can correctly index language-specific content.
- Updated SEO metadata handling to utilize internationalization keys, enhancing the clarity and relevance of page titles and descriptions.
- Refactored SEO utility functions to streamline the management of OpenGraph and hreflang attributes, improving maintainability and performance.

frontend/src/router/index.js

@@ -9,7 +9,7 @@ import blogRoutes from './blogRoutes';
 import minigamesRoutes from './minigamesRoutes';
 import personalRoutes from './personalRoutes';
 import marketingRoutes from './marketingRoutes';
-import { applyRouteSeo, buildAbsoluteUrl } from '../utils/seo';
+import { applyRouteSeo } from '../utils/seo';
 import apiClient from '../utils/axios';
 
 const HomeView = () => import('../views/HomeView.vue');
@@ -21,25 +21,8 @@ const routes = [
     component: HomeView,
     meta: {
       seo: {
-        title: 'YourPart - Community, Chat, Forum, Blogs, Vokabeltrainer und Spiele',
-        description: 'YourPart ist eine Community-Plattform mit Chat, Forum, Blogs, Vokabeltrainer, dem Browser-Aufbauspiel Falukant und Minispielen.',
-        keywords: 'YourPart, Community, Chat, Forum, Blogs, Vokabeltrainer, Browsergame, Falukant, Minispiele',
+        i18nKey: 'home',
         canonicalPath: '/',
-        jsonLd: [
-          {
-            '@context': 'https://schema.org',
-            '@type': 'WebSite',
-            name: 'YourPart',
-            url: buildAbsoluteUrl('/'),
-            inLanguage: 'de',
-            description: 'Community-Plattform mit Chat, Forum, Blogs, Vokabeltrainer, Falukant und Browser-Minispielen.',
-            potentialAction: {
-              '@type': 'SearchAction',
-              target: `${buildAbsoluteUrl('/blogs')}?q={search_term_string}`,
-              'query-input': 'required name=search_term_string',
-            },
-          },
-        ],
       },
     },
   },