feat: Move all logs everything over to logger

[benjackwhite]

Changes

We've had a few issues with over-logging. These show up in recordings and are unclear who they belong to as we don't prefix, as well as generally being a lot noisier than people like.

• Everything now goes via logger
• console.log is no longer allowed via eslint
• Only critical logs are always logged
• Otherwise debug need to be enabled or a new window value POSTHOG_DEBUG to be present (helps us enable debugging on people's sites where posthog is not available in the global context

Checklist

• Tests for new code (see advice on the tests we use)
• Accounted for the impact of any changes across different browsers

[github-actions]

Size Change: -2.3 kB (0%)

Total Size: 724 kB

Filename	Size	Change
dist/array.full.js	177 kB	-554 B (0%)
dist/array.js	118 kB	-584 B (0%)
dist/es.js	118 kB	-581 B (0%)
dist/module.js	118 kB	-581 B (0%)

ℹ️ View Unchanged

Filename	Size
dist/recorder-v2.js	95 kB
dist/recorder.js	58.3 kB
dist/surveys.js	39.4 kB

_{compressed-size-action}

[pauldambra]

LGTM