Fix #1134: Use role=alert on forms/toast message to improve accessibility

6 jobs for 1134-message-alert in 4 minutes and 36 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Review
manual #49855
docker allowed to fail manual
review_docs
manual #49854
docker allowed to fail manual
review_front
 
  Lint
passed #49856
black

00:00:34

passed #49857
flake8

00:00:41

 
  Test
passed #49858
docker
test_api

00:03:13

91.0%
passed #49859
docker
test_front

00:03:34