refactor(TheFooter): add current year

Author: marcel-bitfly

frontend/i18n/locales/en.json

@@ -15,7 +15,7 @@
             "side_navigation": "Side Navigation"
         },
         "footer": {
-            "copyright": "© 2025 beaconcha.in. All rights reserved",
+            "copyright": "© {year} beaconcha.in. All rights reserved",
             "imprint": "Imprint",
             "links": {
                 "follow_us": "Follow us on social media to find out the latest updates on our progress.",

frontend/layers/base/app/components/TheFooter.vue

@@ -194,7 +194,7 @@ const resourceLinks: Link[] = [
             {{ $t('base.footer.privacy') }}
           </NuxtLink>
         </div>
-        <span class="flex self-center sm:order-1">{{ $t('base.footer.copyright') }}</span>
+        <span class="flex self-center sm:order-1">{{ $t('base.footer.copyright', { year: new Date().getFullYear() }) }}</span>
       </div>
     </div>
   </div>