fix(language): set new language as current and bust browser cache on redirect

After creating a new language, set it as the current language and add
filterlang parameter to the redirect URL to prevent browser caching
from hiding the new language in the dropdown.

Author: HugoFara

src/Modules/Language/Http/LanguageController.php

@@ -76,8 +76,11 @@ public function new(array $params): void
         if ($this->param('op') === 'Save') {
             $result = $this->languageFacade->create();
             if ($result['success']) {
+                // Set the newly created language as the current language
+                Settings::save('currentlanguage', (string)$result['id']);
                 // Redirect to text creation page after successful language creation
-                header('Location: ' . url('/texts/new'));
+                // Use filterlang parameter to select the new language and bust browser cache
+                header('Location: ' . url('/texts/new') . '?filterlang=' . $result['id']);
                 exit;
             }
             // On error, fall through to show the form with error message