[UIK-4878] TrendHistogram displayName and playground

[sheila-semrush]

Changelog

@semcore/mini-chart

Fixed

• TrendBar and TrendHistogram displayName

Motivation and Context

• TrendBar and TrendHistogram are missing from the mini-chart playground
• their displayNames are wrong (can be seen in the playground)

How has this been tested?

Screenshots (if appropriate):

Types of changes

• 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).
• Nice improve.

Checklist:

• I have updated the documentation accordingly.
• I have added new tests on added of fixed functionality.