Do not deselect on ESC when it was used to close some other UI element

[abey79]

What

This PR attempt to make the "deselect-on-ESC" less aggressive and avoid triggering it when the ESC keystroke was used to close some other UI element.

Work around for:

• Popup menu and pickers doesn't capture the input (Escape) used to close it emilk/egui#5189

Supported

• any popup menu (including color picker)
• context menu
• modals

TODO

• rerun menu (haven't found an easy way yet)

Not supported

• tooltip (on purpose, these disappear by themselves)

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)
• 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
• The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG
• If applicable, add a new check to the release checklist!
• If have noted any breaking changes to the log API in CHANGELOG.md and the migration guide

• 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]

neat!