fix: chat tutorial, last version → set new log visible

[GrCOTE7]

Description

Before:
https://prnt.sc/8Ch7plKzhNpq

After:
https://prnt.sc/S4ZRBtdYrYLh

→ A very basic and minor correction to see who is logged (Tutorials/examples/chat)

Test Code

# Test code for the review of this PR

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

• I signed the CLA.
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• New and existing tests pass locally with my changes
• I have made corresponding changes to the documentation (if applicable)

Screenshots

Additional details

Summary by Sourcery

Bug Fixes:

• Increase the contrast of the login status text in the chat tutorial so the logged-in user is clearly visible.

[sourcery-ai]

We've reviewed this pull request using the Sourcery rules engine