feat: Allow setting asset_host to not load assets from api_host

[frankh]

Changes

...

Checklist

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

[posthog-bot]

Hey @frankh! 👋
This pull request seems to contain no description. Please add useful context, rationale, and/or any other information that will help make sense of this change now and in the distant Mars-based future.

[github-actions]

Size Change: +5.03 kB (+1%)

Total Size: 763 kB

Filename	Size	Change
dist/array.full.js	179 kB	+1.26 kB (+1%)
dist/array.js	120 kB	+1.25 kB (+1%)
dist/es.js	120 kB	+1.25 kB (+1%)
dist/module.js	121 kB	+1.25 kB (+1%)
dist/recorder.js	58.4 kB	+6 B (0%)

ℹ️ View Unchanged

Filename	Size
dist/exception-autocapture.js	12 kB
dist/recorder-v2.js	104 kB
dist/surveys.js	48.7 kB

_{compressed-size-action}

[pauldambra]

didn't run it but looks good to me :)

suggested duplicating some comments onto the type definition so we can have slightly nicer intellisense

[posthog-bot]

This PR hasn't seen activity in a week! Should it be merged, closed, or further worked on? If you want to keep it open, post a comment or remove the stale label – otherwise this will be closed in another week.