rules.pl: rename trust decision in UI Before: ✓ Trust-2 👍 ✗ Trust-2 👎 After: ✓ Trusted 👍 ✗ Untrusted 👎 Change-Id: I2773cd3e8a4abfd108b8beec33eaa0aa6dd22442 Reviewed-on: https://go-review.googlesource.com/c/All-Projects/+/255025 Reviewed-by: Andrew Bonventre <andybons@google.com>