[current results ui] Make failures tab the default
[current results ui] Make failures tab the default

Change-Id: I7c1e9eada5f3dfa808f3fe73c6925e9641d71a72
Reviewed-on: https://dart-review.googlesource.com/c/dart_ci/+/165243
Reviewed-by: Karl Klose <49bc0b76cffb0b10cd8c84f9cabc97a31ffe6343@google.com>

dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci