[PLAT-1661] Fix alert messages for notification failures

Summary: In case of notification failures we're adding alert uuid to alert message instead of alert name. UUIDs say nothing to user.

Test Plan: Emulate notification failure and check error message.

Reviewers: spotachev

Reviewed By: spotachev

Subscribers: jenkins-bot, yugaware

Differential Revision: https://phabricator.dev.yugabyte.com/D12908

Author: anmalysh-yb

managed/src/main/java/com/yugabyte/yw/common/alerts/impl/AlertChannelEmail.java

@@ -40,13 +40,13 @@ public void sendNotification(Customer customer, Alert alert, AlertChannel channe
 
     if (CollectionUtils.isEmpty(recipients)) {
       throw new PlatformNotificationException(
-          String.format("Error sending email for alert %s: No recipients found.", alert.getUuid()));
+          String.format("Error sending email for alert %s: No recipients found.", alert.getName()));
     }
 
     if (smtpData == null) {
       throw new PlatformNotificationException(
           String.format(
-              "Error sending email for alert %s: Invalid SMTP settings found.", alert.getUuid()));
+              "Error sending email for alert %s: Invalid SMTP settings found.", alert.getName()));
     }
 
     try {
@@ -58,7 +58,7 @@ public void sendNotification(Customer customer, Alert alert, AlertChannel channe
           Collections.singletonMap("text/plain; charset=\"us-ascii\"", text));
     } catch (MessagingException e) {
       throw new PlatformNotificationException(
-          String.format("Error sending email for alert %s: %s", alert.getUuid(), e.getMessage()),
+          String.format("Error sending email for alert %s: %s", alert.getName(), e.getMessage()),
           e);
     }
   }

managed/src/main/java/com/yugabyte/yw/common/alerts/impl/AlertChannelSlack.java

@@ -52,7 +52,7 @@ public void sendNotification(Customer customer, Alert alert, AlertChannel channe
     } catch (IOException e) {
       throw new PlatformNotificationException(
           String.format(
-              "Error sending Slack message for alert %s: %s", alert.getUuid(), e.getMessage()),
+              "Error sending Slack message for alert %s: %s", alert.getName(), e.getMessage()),
           e);
     }
   }