Documentation for `Alert` is incorrect

[mdsina]

https://plesk.github.io/ui-library/#!/Alert
Plesk UI Library 1.1.5

There are four types of the messages

    ...
    error (red) - for notification about any errors occured, just after it was happened
    ...

There are no error type, only danger works.
Tested on Plesk 17.9.5