Use `list_item2` for the component list in `InstancePath::data_ui`

[abey79]

What

• Fixes #4161
• Follow up to #6297
• Follow up to #6325

This PR uses list_item2 for the component list in the entity path selection panel and tooltip.

Blocked by https://github.com/emilk/egui/issues/4471 to resolve the tooltip "first frame flicker"

TODO:

• [ ] ⚠️ full_span_scope panic on hover on spatial space view: https://github.com/rerun-io/rerun/issues/6246

selection panel

before:

after:

Note: the hover behaviour is the biggest change here: now full span, previously just on the left-column button

tooltip

before:

after:

Checklist

• [x] I have read and agree to Contributor Guide and the Code of Conduct
• [x] I've included a screenshot or gif (if applicable)
• [x] I have tested the web demo (if applicable):
  • Using examples from latest main build: rerun.io/viewer
  • Using full set of examples from nightly build: rerun.io/viewer
• [x] The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG
• [x] If applicable, add a new check to the release checklist!

• PR Build Summary
• Recent benchmark results
• Wasm size tracking

To run all checks from main, comment on the PR with @rerun-bot full-check.

[Wumpf]

before screenshots would be nice. my memory is pretty bad with these things :)

[abey79]

before screenshots would be nice. my memory is pretty bad with these things :)

Done (though visually it doesn't make such a difference on screenshots)

[github-actions[bot]]

Deployed docs

Commit	Link
e47d6cd93aa14efd81925d02532390c3e4b843d8	https://landing-bpxphhc9m-rerun.vercel.app/docs