Problem: If `telescope.builtin.__lsp.definition` is invoked on an empty file, `item_to_location` returns a location with `-1` as a its column value. Solution: Respectively return 0 if the line or column number is <= 0
Problem: If `telescope.builtin.__lsp.definition` is invoked on an empty file, `item_to_location` returns a location with `-1` as a its column value. Solution: Respectively return 0 if the line or column number is <= 0