PR edit option using "..." menu not rendering edit dialog in both edge and chrome browser

[Maulin Lodhia]

Findings

1. The Edit button click IS triggering JavaScript - The console shows the code executing through pull-request-edit.js → b.show → b.populatePanelFromPullRequest → user-multi-selector initialization
2. The edit panel element is NOT being created in the DOM - After clicking Edit, there's no edit panel, sidebar, or dialog element added to the page
3. No JavaScript errors - Only passive event listener warnings (which are harmless)
4. The page panel structure is incomplete - It only has 1 child element when it should have 2 (content + edit panel nav)