Fixed Issues in Streams Messaging Manager

Review the list of Streams Messaging Manager issues that are resolved in Cloudera Runtime 7.2.11.

CDPD-26633: SMM API exposes email notifier SMTP password
The SMM API no longer returns the SMTP password in its responses to avoid sensitive information leak. This leaves the SMTP password field blank in the SMM UI when editing an email notifier provider. The password needs to be re-entered when any changes are made to its configurations.