feat: improve login error message

[GleidsonDaniel]

Proposed changes

Currently, when there is a login error, only a generic message is displayed, this PR corrects this and adds other messages that exist on the web.

Issue(s)

resolve: #5592

How to test or reproduce

• have a user blocked by the administrator and try to log in

Screenshots

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves a current function)
• New feature (non-breaking change which adds functionality)
• Documentation update (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Further comments

Jira: CORE-114

[diegolmello]

Just case changes to match current RC copy standards