Greasy fork 爱吃馍镜像

Fix ChatGPT not loading in multiple tabs (due to Performance.measure Error)

Fixes ChatGPT failing to load when you open several tabs. Some sessions crash because of bad `Performance.measure` calls used for analytics. This script safely overrides `Performance.measure`, skipping invalid calls so the site loads normally while leaving your experience unchanged. Fully commented; questions and feedback welcome.