Update Spanish locale, add missing CurseForge API Key translation, implement Turkish translation, and fix contributor links comma. (#135)

* Update Spanish locale and add missing CurseForge API Key translation

- Updated the Spanish locale name to distinguish between multiple locale types.
- Added missing translation for the page indicating the missing CurseForge API Key.

* Implemented Turkish locale support

* Add Turkish locale to available languages

* Add missing comma in contributor links

* Correct Portuguese language name in available languages

---------

Co-authored-by: Fazri Gading <fazrigading@gmail.com>

GUI/js/i18n.js

@@ -4,8 +4,9 @@ const i18n = (() => {
   let translations = {};
   const availableLanguages = [
     { code: 'en', name: 'English' },
-    { code: 'es', name: 'Español' },
-    { code: 'pt-BR', name: 'Português (Brasil)' }
+    { code: 'es-ES', name: 'Español (España)' },
+    { code: 'pt-BR', name: 'Portuguese (Brazil)' },
+    { code: 'tr-TR', name: 'Turkish (Turkey)' }
   ];
 
   // Load single language file

GUI/js/mods.js

@@ -200,10 +200,15 @@ async function loadBrowseMods() {
       browseContainer.innerHTML = `
         <div class=\"empty-browse-mods\">
           <i class=\"fas fa-key\"></i>
-          <h4>API Key Required</h4>
-          <p>CurseForge API key is needed to browse mods</p>
+          <h4 data-i18n="mods.apiKeyRequired">API Key Required</h4>
+          <p data-i18n="mods.apiKeyRequiredDesc">CurseForge API key is needed to browse mods</p>
         </div>
       `;
+      if (window.i18n) {
+        const container = modsContainer.querySelector('.empty-browse-mods');
+        container.querySelector('h4').textContent = window.i18n.t('mods.apiKeyRequired');
+        container.querySelector('p').textContent = window.i18n.t('mods.apiKeyRequiredDesc');
+      }
       return;
     }