Generate insights from audit logs

[florianm]

Feature

Audit logs track an enumerator's journey through the survey. The timing could indicate where an enumerator is hesitating, (pending implementation) expanding the guidance hint (= user reads the fine manual), (pending implementation) collect settings (font size, colour mode as indicators of user needs of accessibility).

Feature: visualise the enumerator's journeys through the form submissions. Show: where does everyone get stuck, are some users consistently slower overall or in specific parts of the form.

Great examples by @chrissyhroberts are at https://github.com/chrissyhroberts/ruODK_monitoring_tool/blob/main/audit_log_ruODK.R