[Unified Search][Lens] Focus selectable search inputs in dropdowns

[nickofthyme]

Summary

Adds autoFocus search input in dropdown for the global Data view selector and the Lens chart switch. Now clicking on either dropdown, the focus will automatically be on the input for the user to start typing to filter selectable items. This does not change the tab indexing of the surrounding elements.

Data view picker

Lens chart switch

closes #189686

Checklist

• Unit or functional tests were updated or added to match the most common scenarios
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)
• Any UI touched in this PR does not create any new axe failures (run axe in browser: FF, Chrome)
• This was checked for cross-browser compatibility

[elasticmachine]

Pinging @elastic/kibana-visualizations (Team:Visualizations)

[davismcphee]

Nice! Simple and it works, LGTM 👍

[mbondyra]

@elasticmachine merge upstream

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: ee95c9c

Failed CI Steps

• FTR Configs #81

Test Failures

• [job] [logs] FTR Configs #81 / Visualizations - Group 3 lens app - TSVB Open in Lens Dashboard to TSVB to Lens should convert a by reference TSVB viz to a Lens viz

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
unifiedSearch	219.0KB	219.0KB	+39.0B

History

• 💛 Build #229530 was flaky 3f749c6

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@elasticmachine merge upstream