MQE-1520: Consolidate WAIT_TIMEOUT in .env and pageload_timeout

Updated .env.example

Author: soumyau

etc/config/.env.example

@@ -53,7 +53,7 @@ MODULE_WHITELIST=Magento_Framework,ConfigurableProductWishlist,ConfigurableProdu
 #ALLOW_SKIPPED=true
 
 #*** Default timeout for wait actions
-#WAIT_TIMEOUT=10
+#WAIT_TIMEOUT=30
 
 #*** Uncomment and set to enable browser log entries on actions in Allure. Blacklist is used to filter logs of a specific "source"
 #ENABLE_BROWSER_LOG=true