[JENKINS-73813] Show a notification when scheduling a build fails

[mawinter69]

When a build is triggered via the UI (either on the job page or via the buildbuttoncolumn in a view) and the crumb is no longer valid, the tooltip was shown that the build was scheduled, although nothing happened.
This change will show a notification when scheduling failed.

See JENKINS-73813.

Testing done

Manual testing

• setup jenkins with users
• create a job without parameters
• go to dashboard
• in a second window logout the user
• click on schedule build -> notification is shown

Proposed changelog entries

• Show a notification when scheduling a build fails

Proposed upgrade guidelines

N/A

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[mawinter69]

I've chosen to use a notificationBar in case of an error as the hoverNotification doesn't allow to change color.
One idea might be to use a notification also for the success case.