feat(core): DropdownOpen focus item in dropdown upon opening

[waterplea]

Closes #

[lumberjack-bot]

Failed tests ❌

After <= Diff => Before

tests-core-data-list-data-list-DataList-Complex-chromium/08-data-list.diff.png

tests-core-data-list-data-list-DataList-Submenu-chromium/03-1-data-list.diff.png

tests-core-dropdown-dropdown-Dropdown-Esc---Hosted-Dropdown-chromium/06-dropdown.diff.png

_{(updated for commit 2f209fc)}

[github-actions]

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[bundlemon]

BundleMon

Files updated (1)

Status	Path	Size	Limits
✅	demo/browser/styles.(hash).css	11.41KB (+133B +1.15%)	+10%

Unchanged files (4)

Status	Path	Size	Limits
✅	demo/browser/main.(hash).js	285.03KB	+10%
✅	demo/browser/vendor.(hash).js	227.11KB	+10%
✅	demo/browser/runtime.(hash).js	40.88KB	+10%
✅	demo/browser/polyfills.(hash).js	11.21KB	+10%

Total files change +136B +0.02%

Unchanged groups (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	6.63MB	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[waterplea]

The tabs screenshot showcases this issue:
#837
Now that we got rid of hosted dropdown and polymorpheus allows to pass active zone automatically it should be easier to fix it.