feat: send custom event when network status changes

[pauldambra]

We can listen for network connection status and enrich the session with a custom event when it changes

[github-actions]

Size Change: +764 B (0%)

Total Size: 762 kB

Filename	Size	Change
dist/array.full.js	179 kB	+194 B (0%)
dist/array.js	120 kB	+190 B (0%)
dist/es.js	120 kB	+190 B (0%)
dist/module.js	120 kB	+190 B (0%)

ℹ️ View Unchanged

Filename	Size
dist/exception-autocapture.js	12 kB
dist/recorder-v2.js	104 kB
dist/recorder.js	58.4 kB
dist/surveys.js	48.7 kB

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