feat: Add screen dimensions and UA as person property

[robbie-c]

Problem

These are needed for some conversion destinations

See also PostHog/posthog-js#1840

Changes

Add screen / viewport dimensions and user agent as person properties

Does this work well for both Cloud and self-hosted?

Yes

How did you test this code?

n/a

[greptile-apps]

PR Summary

This PR adds screen dimensions and user agent information as person properties in PostHog, enabling these attributes to be used for conversion destinations.

• Added $screen_height, $screen_width, $viewport_height, $viewport_width, and $raw_user_agent to PERSON_PROPERTIES_ADAPTED_FROM_EVENT in /frontend/src/lib/taxonomy.tsx
• Added same properties to eventToPersonProperties set in /plugin-server/src/utils/db/utils.ts for automatic capture
• Properties will be automatically adapted from events to person objects through existing property adaptation system

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[github-actions]

Size Change: +43 B (0%)

Total Size: 9.75 MB

ℹ️ View Unchanged

Filename	Size	Change
frontend/dist/toolbar.js	9.75 MB	+43 B (0%)

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