feat: capture more sentry levels

[pauldambra]

For #1060

We register a sentry event processor and only process events with level error

captureMessage events pass through the same processor and can have multiple levels.

We also don't want to change existing behaviour since this could be a high event volume change for people

So this change allows people to opt-in by setting an allowlist of severity levels to capture

You could set '*' to process any sentry message
Or ['error', 'info'] to process default calls to captureException and captureMessage

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I did consider changing the emitted event so that captureMessage did not emit $exception but instead event.message as the event but it seems neater that the sentry integration always emits the same event type

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message from captureMessage enhanced with PostHog URLs

[github-actions]

Size Change: +504 B (0%)

Total Size: 944 kB

Filename	Size	Change
dist/array.full.js	225 kB	+126 B (0%)
dist/array.js	124 kB	+126 B (0%)
dist/es.js	125 kB	+126 B (0%)
dist/module.js	125 kB	+126 B (0%)

ℹ️ View Unchanged

Filename	Size
dist/exception-autocapture.js	12.1 kB
dist/recorder-v2.js	106 kB
dist/recorder.js	106 kB
dist/surveys-module-previews.js	62 kB
dist/surveys.js	58.3 kB

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