fix: make WireAnalytics independent of WireDatadog - WPB-13904

[caldrian]

WPB-13904 [iOS] DataDog integration leads to build failures

Issue

WireDatadog was referenced as a dependency of WireAnalytics, but this is not really needed.
This PR moves one file from WireAnalytics into WireSyncEngine.
WireSyncEngine then references WireDatadog directly.
WireDatadog only conditionally imports Datadog.

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

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UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.

[github-actions]

Test Results

    3 files    448 suites   5m 20s ⏱️
3 133 tests 3 133 ✅ 0 💤 0 ❌
3 141 runs  3 141 ✅ 0 💤 0 ❌

Results for commit 8bb3545.

♻️ This comment has been updated with latest results.

[netbe]

@caldrian I am closing this in favor of #2153