chore: add the dead clicks autocapture without initialising it

[pauldambra]

#1463 adds deadclicks functionality but a surveys cypress test consistently fails on that PR and we don't know why

this PR brings the implementation of dead clicks autocapture out of that PR without wiring it up to see if the surveys test fails when the code is present but not used

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Name	Status	Preview	Updated (UTC)
posthog-js	✅ Ready (Inspect)	Visit Preview	Oct 31, 2024 2:28pm

[github-actions]

Size Change: +46.6 kB (+1.58%)

Total Size: 3.01 MB

Filename	Size	Change
dist/all-external-dependencies.js	193 kB	+11 kB (+6.06%)	🔍
dist/array.full.es5.js	251 kB	+1.96 kB (+0.79%)
dist/array.full.js	342 kB	+6.25 kB (+1.86%)
dist/array.full.no-external.js	341 kB	+6.25 kB (+1.87%)
dist/array.js	168 kB	+1.73 kB (+1.04%)
dist/array.no-external.js	167 kB	+1.73 kB (+1.04%)
dist/main.js	169 kB	+1.73 kB (+1.03%)
dist/module.full.js	342 kB	+6.25 kB (+1.87%)
dist/module.full.no-external.js	341 kB	+6.25 kB (+1.87%)
dist/module.js	168 kB	+1.73 kB (+1.04%)
dist/module.no-external.js	167 kB	+1.73 kB (+1.04%)

ℹ️ View Unchanged

Filename	Size
dist/dead-clicks-autocapture.js	12.8 kB
dist/exception-autocapture.js	8.77 kB
dist/external-scripts-loader.js	2.19 kB
dist/recorder-v2.js	102 kB
dist/recorder.js	103 kB
dist/surveys-preview.js	56.7 kB
dist/surveys.js	62.1 kB
dist/tracing-headers.js	1.33 kB
dist/web-vitals.js	10.3 kB

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[pauldambra]

this PR has served its discovery purpose