feat(graph): shared graph tooltip is not a select option with 3 options, normal, shared crosshair & shared tooltip, CTRL+O or CMD+O cycles option, closes #6894

(format) run go fmt in pkg

(typo) Exeuction -> Execution

I created this test by misstake. But instead of deleting it I thought it
might be good to keep it to make it easier to add tests for the alert
tab

cleanup(): removed docker/production folder as it was old and unused (ie grafana-docker repo is the place for the offical production docker container

This enables Grafana to accept new users authenticated through OAuth, without this set to true only previously authenticated users may log in with OAuth - and thus defeating the purpose.