feat: update the platform lesson to be about JS

Author: honzajavorek

sources/academy/webscraping/scraping_basics_javascript2/13_platform.md

@@ -231,8 +231,8 @@ Now let's connect this file to the actor configuration. In `actor.json`, we'll a
   "version": "0.0",
   "buildTag": "latest",
   "environmentVariables": {},
-    // highlight-next-line
-    "input": "./inputSchema.json"
+  // highlight-next-line
+  "input": "./inputSchema.json"
 }
 ```