Add new GPay donor flow events to instrumentation docs and create instrumentation ticket for engineers.
Use screens from [[ https://www.figma.com/file/yapMJ6cGCJpYWhLmnSYScJ/iOS-and-Android-%E2%86%92-Donor-experiences?type=design&node-id=1248-532&mode=design&t=eIonvbheJPX6dSye-0 | Figma ]] / Design ticket: T362698
Plan to report on specific metrics for GPay:
- **Indicator**: 30% higher donation completion rate (Success rate %) for donations made through Native GPay as compared to web view donations (all payment types)
- **Curiosity**: What percentage of users use native payment GPay compared to GPay on Web?
- **Curiosity**: How did the share of GPay donations as a portion of all Android donations change? (compare to last campaign, or before and after of Apps Menu donations)
- **Guardrail**: Abandonment rate is no more than 25%