Fix: Update style for the .defaultHidden to resolve Bug: #6750

[D34NM]

Description

The fix is a simple CSS style change. The style for the .defaultHidden class was applied on the "layer" above the actual menu item.

Fixes # (issue)

Bug #6750

Checklist

• Is this feature complete?
  • [x] Yes. Ready to ship.
  • [ ] No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • [ ] Yes
  • [x] No
• Did you add public API?
  • [ ] Yes
  • If yes, did you have an API Review for it?
    • [ ] Yes
    • [x] No
  • Did you add <remarks /> and <code /> elements on your triple slash comments?
    • [ ] Yes
    • [x] No
  • [x] No
• Does the change make any security assumptions or guarantees?
  • [ ] Yes
  • If yes, have you done a threat model and had a security review?
    • [ ] Yes
    • [x] No
  • [x] No

• Does the change require an update in our Aspire docs?

  • [ ] Yes
  • Is this introducing a breaking change?
    • [ ] Yes
    • Link to aspire-docs issue (please use this breaking-change template):
    • [x] No
    • Link to aspire-docs issue (please use this doc-idea template):
  • [x] No

  Microsoft Reviewers: Open in CodeFlow

[JamesNK]

This is incorrect. The ... button should only be visible when hovering over the grid value.

I can't reproduce the reported issue: https://github.com/dotnet/aspire/issues/6750#issuecomment-2496324360

cc @mitchdenny

[D34NM]

@JamesNK wasn't aware of it. But I could reproduce the issue described above. And it was visible, but I will close the PR. Thanks for the review :)