Promote the mobile error reporting interface (mobile.errorReport) to beta for testing.
- Add EventLogging to the following events:
- Click 'Report an error' button
- Click 'Continue' button
- Text area is focused
- Minimum message length threshold is met (see onErrorFieldChange())
- Report is successfully submitted
- Make sure event logging records the wiki and page that the event originates from.
- Fix broken mobile-frontend-editor-terms-link message in overlay.
- Put feature behind a feature flag