Reported by @wispy crown
Bug Report: Prosemirror Cursor Error on Platform.OpenAI.com
`Steps to Reproduce`
go to: https://platform.openai.com/playground/chat?models=gpt-4o
start typing a prompt
go to the middle of your prompt (ie use cursor to go to the middle of a sentence so no longer appending to the end) and as u type the cursor will keep moving to the end after each keystroke, breaking your ability to edit your prompt
`Expected Result`
i expect the cursor would stay where i put it, with proper offsetting. this is convention and how it worked before this bug (which i just noticed)
`Actual Result`
cursor keeps resetting at the end improperly
`Environment`
latest chrome, macos