Improvements for events in info panel

[czifumasa]

Scope of the PR:

• display family events (marriage, divorce) with name of the referenced spouse
• display event description and notes to which event is referenced
• visual improvements (moved date to the right side, changed font size for the header)

Additionally In scope of this PR. I extracted a few components from details.tsx and moved them to seperate files in a new details package.

Result of the PR:

Please let me know if you have any remarks. I am open to feedback and further improvements.