chore: add redirect

Author: honzajavorek

nginx.conf

@@ -308,6 +308,8 @@ server {
   # Removed pages
   # GPT plugins were discontinued April 9th, 2024 - https://help.openai.com/en/articles/8988022-winding-down-the-chatgpt-plugins-beta
   rewrite ^/platform/integrations/chatgpt-plugin$            https://blog.apify.com/add-custom-actions-to-your-gpts/ redirect;
+  # TypeScript course was removed from the Academy - https://github.com/apify/apify-docs/pull/1552
+  rewrite ^/academy/switching-to-typescript(/.*)?$           https://apify.com/templates/categories/typescript permanent;
 
   # Python docs