[Bug]: OverlayDialog is being exported even though it doesn't exist

### Code of conduct

- [x] I agree to follow this project's code of conduct.

### Impacted component(s)

sp-overlay

### Library version

1.7.0

### Expected behavior

_No response_

### Actual behavior

https://github.com/adobe/spectrum-web-components/blob/main/packages/overlay/package.json#L52-L55

### Screenshots

_No response_

### What browsers are you seeing the problem in?

_No response_

### How can we reproduce this issue?

1. Go to '...'
2. Click on '....'
3. Scroll to '....'
4. Check console
5. See error

### Sample code or abstract reproduction which illustrates the problem

_No response_

### Severity

SEV 5

### Logs taken while reproducing problem

_No response_

### Would you like to track this issue in Jira?

- [x] Yes, please tell me the ticket number!

Start by inspecting packages/overlay/package.json at lines 52-55 and compare its exports with the files that exist in the overlay package. Confirm the invalid OverlayDialog export is removed or corrected, then run the package's available validation or build checks to verify the published exports resolve.

Written by the indexing model from the issue text.