Update user registration message

[dan-du-car]

PR Details

Description

Update user registration success message that notifying users the limitation of default viewer role. It points out the direction to update their roles to give them more permissions on the UI.

Add detail message to ask users to request updating to editor role if they would like to create dashboards, events, etc...

Related GitHub Issue

NA

Related Jira Key

Motivation and Context

How Has This Been Tested?

Types of changes

• [x] Defect fix (non-breaking change that fixes an issue)
• [ ] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that cause existing functionality to change)

Checklist:

• [ ] I have added any new packages to the sonar-scanner.properties file
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[adev4a]

Please resolve merge conflicts before merging