Bug Copy/Pasting / Cell Focus not working as expected

[jlewi]

buildDate: "2026-05-15T00:58:32Z"
webRepo: runmedev/web
webBranch: main
webCommit: 89f866a
codexBranch: dev/jlewi/wasm
codexCommit: 78cdff946581323dbe81032e3b620a7000080b80
bucket: gs://runme-hosted

Issue seems to be

1. Have a really long notebook
2. Do find to find some text
3. Try to click on the cell to copy and paste

Focus is often scrolled/shifted past the matched text

[jlewi-openai]

Cleanup review: #239 fixed related Markdown focus/render transitions, but its tests cover blur and active-cell switching rather than the reported long-notebook browser-find → click → copy/paste scenario. I did not find a dedicated regression for focus being scrolled past a find match. Keeping open.