TODO:

- [ ] Add y axis padding to list instead of popover container
- [x] Combined max-width between completions list and docs
- [ ] Allow docs to be taller than completion list
- [x] Use the workspace bounds to set doc position
- [ ] Clean up markdown styles
- [x] (🐜) Changing items should set doc scroll position to the top
- [x] (🐜) popovers should render on top of all panes
- [ ] (extra) Try adding code block backgrounds to md rendering
- [ ] (extra) Use ui font for markdown text, buffer font for markdown
code.
- [ ] (extra) Try lining up inline code in completions menu

[[PR Description]]

Release Notes:

- N/A