fix(core): Dropdown fix for initial open state

[waterplea]

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Refactoring
• Build or CI related changes
• Tests related changes
• Documentation content changes

What is the current behaviour?

Closes #5742

What is the new behaviour?

[lumberjack-bot]

Pull request was closed ✔️

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[github-actions]

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[bundlemon]

BundleMon

Files updated (1)

Status	Path	Size	Limits
✅	demo/browser/main.(hash).js	374.83KB (+47B +0.01%)	+10%

Unchanged files (4)

Status	Path	Size	Limits
✅	demo/browser/vendor.(hash).js	198.18KB	+10%
✅	demo/browser/runtime.(hash).js	41.11KB	+10%
✅	demo/browser/polyfills.(hash).js	11.22KB	+10%
✅	demo/browser/styles.(hash).css	1.22KB	+10%

Total files change +47B +0.01%

Groups updated (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	2.28MB (+47B 0%)	-

Final result: ✅

View report in BundleMon website ➡️

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