lint integration unreliable

[cidrblock]

trafficstars

if running site.yml as the playbook in the current directory, the playbook is not passed to the ansible-lint command and therefore is not linted

if :lint -- site.yml is provided as a command in the TUI, the -- is not passed to lint and therefore the playbook is not linted.

[shatakshiiii]

Related: https://github.com/ansible/ansible-navigator/issues/1203