Do not render a signature popover when its location is before the visible range (#14307)

Follow-up of https://github.com/zed-industries/zed/pull/12909

Release Notes:

- N/A
ea26a01f5fKirill Bulatov committed on 7/12/2024, 8:31:52 AM· committed by GitHubparent8abc000
1 file changedLine totals unavailable