feat: add multiline item rendering

[LoricAndre]

Checklist

• The title of my PR follows conventional commits
• I have updated the documentation (README.md, comments, src/manpage.rs and/or src/options.rs if applicable)
• I have added unit tests
• I have added integration tests
• I have linked all related issues or PRs

Description of the changes

Note: codecov runs on the PR on this repo, but feel free to ignore it.

[codecov]

Codecov Report

❌ Patch coverage is 79.62963% with 88 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/tui/item_renderer.rs	84.83%	40 Missing and 7 partials ⚠️
src/tui/item_list.rs	70.37%	30 Missing and 2 partials ⚠️
src/tui/app.rs	0.00%	8 Missing ⚠️
src/options.rs	83.33%	1 Missing ⚠️

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