chore: only show recording as invalid when no warnings present

[daibhin]

Problem

Does what it says on the tin really

Changes

related followup to https://github.com/PostHog/posthog/pull/23323

[github-actions[bot]]

Size Change: 0 B

Total Size: 1.06 MB

ℹ️ View Unchanged

Filename	Size
frontend/dist/toolbar.js	1.06 MB

_{compressed-size-action}