Improvements to the team dashboard

Objective Goal:

Various improvements to the team metrics dashboard

[ ] Tasks should link to the github issue
[x] All tasks should be listed for one HB, to avoid closed ones to disappear.
[x] No manual action should be needed even if we add 20 new issues today (plan for scaling)
[x] Errors in main tab table should be hidden by default.
[x] New rows added from zapier are parsed.