Reported by @slow sand
Bug Report: Opening COT sidebar issues
`Steps to Reproduce`
The UI, after opening the sidebar, shifts the chat content to the left and closing the sidebard has no effect aside from hiding COT. There is no way to scroll left.
`Expected Result`
The COT sidebar gets hidden, and viewport focus returns to the main chat.
`Actual Result`
Sidebar closes and nothing shows, the chat is cuttoff. The only resolution is to refresh the page or make the page full screen. But even making the page full screen still shows the sidebar menu as being open, but no content being present.
`Environment`
Edge and desktop