Fix issues with select dropdown

[mrubens]

Context

Found a couple issues when playing around with #1329

• If you went to another tab when the dropdown was open, it would jump to the top left
• Clicking outside didn't close the dropdowns
• We still had logic looking for a fixed string separator

Implementation

• Fixed the main issue by specifying the portal to use
• Added onEscapeKeyDown and onInteractOutside handlers
• Removed the old code

Screenshots

Before:

After: Goes away

---

Important

Fixes SelectDropdown issues by adding event handlers for closing dropdown and removing outdated string separator logic.

• Behavior:
  • Adds onEscapeKeyDown and onInteractOutside handlers in select-dropdown.tsx to close dropdown on escape key or outside interaction.
  • Removes logic for string separator handling in select-dropdown.tsx.
• Tests:
  • Adds test for controlled open state in select-dropdown.test.tsx.
  • Removes test for string separator in select-dropdown.test.tsx.
• Misc:
  • Uses useEffect to set portalContainer for dropdown rendering in select-dropdown.tsx.

^{This description was created by for 74d52aa. It will automatically update as commits are pushed.}

[changeset-bot]

⚠️ No Changeset found

Latest commit: 74d52aa

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[ellipsis-dev]

The new test "ensures open state is controlled via props" only checks the presence of elements without simulating any interactions that change the open state. Consider adding tests to simulate opening the dropdown and then triggering the escape key and outside clicks to ensure the onEscapeKeyDown and onInteractOutside handlers properly close the dropdown.