Ingest Thunderbird ADI data more promptly

[Sancus]

Right now there's a fairly long delay in the Thunderbird ADI data, because of two factors:
a) We don't parse the logs until 7 hours after end-of-day UTC.
b) Desktop clients don't report to the server that they have updated until some time after they updated, often up to 24h, depending on when they actually restart the client and when the next update ping happens.

We can't really do anything about b, but we could parse the logs with less delay and do it incrementally multiple times per day.