feat: add config properties to customize reviewer and review date display behavior

[sbstnc]

This PR introduces a new config section to customize select aspects of display behavior. Namely, you can elect to display or hide the reviewer and review date information. The default is to always display the information and therefore the implementation is fully backwards compatible. Apart from the static display options 'always' and 'never' we also introduce the variant 'if-data-present' which will show or hide the respective columns dynamically based on the presence or absence of data.

📷 Screenshots

Score Board

Options	After
reviewer ✅ review date ✅ (Default, matches before)
reviewer ❌ review date ❌
reviewer ✅ review date ❌
reviewer ❌ review date ✅

Score Card

Options	After
reviewer ✅ review date ✅ (Default, matches before)
reviewer ❌ review date ❌
reviewer ✅ review date ❌
reviewer ❌ review date ✅

✔️ Checklist

• Added tests for new functionality and regression tests for bug fixes
• Added changeset (run yarn changeset in the root)
• Screenshots of before and after attached (for UI changes)
• Added or updated documentation (if applicable)

[jvilimek]

Sorry, missed the notification. Thanks a lot for your contribution, nice and elegant solution!