PLEASE NOTE THAT THIS DIFF AND SUBSEQUENT DIFFS IN THIS STACK WILL NOT BE LANDED UNTIL MORE OF THE REDESIGN IS READY SINCE THIS WILL CAUSE REGRESSIONS IN PROD
This diff introduces the account settings panel and makes various ui changes to the AccountSettings component so that it can be housed within the account settings panel and matches the UI shown in the figma doc
For context here is what the designs look like on figma:
Linear task: https://linear.app/comm/issue/ENG-5953/selected-settings-ui
Depends on D10855