Bug 2020677 - Graph unique client IDs on the error details page

[bendk]

Also changed the minimum interval to 2h rather than 30m. The graphs felt too noisy to me with a short interval.

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[bendk]

This is looking pretty good to me, here's an example: https://yardstick.mozilla.org/d/sync-errors/sync-error-list?orgId=1&from=now-2w&to=now&timezone=browser&var-application=firefox_android&var-channel=nightly&var-error_type=fxa-client-other-error&var-version=&var-build_date=&var-architecture=&var-device_manufacturer=&var-device_model=&var-locale=&var-os=&var-os_version=&refresh=1h