Use main_summary dataset to compute mau & dau.
Use main_summary dataset to compute mau & dau.

Switch from using the executive_summary dataset to main_summary.

mozilla-services/data-pipeline,acmiyaguchi/data-pipeline,mozilla-services/data-pipeline,mozilla-services/data-pipeline,acmiyaguchi/data-pipeline,mozilla-services/data-pipeline,acmiyaguchi/data-pipeline,acmiyaguchi/data-pipeline