DYN-6693 Alert user for duplicate files when publishing package

[zeusongit]

Purpose

When files with same name exist in the package being uploaded by the publisher, only one of those duplicate files is retained, as they get merged into the same directory when retain folder structure toggle is off.
After this change the user will be alerted this when it occurs.

The alert message text is being finalized by the UX, and will be updated as a resource string soon.
Strings added to resource string
Introduced a new dialog box with scrollable body for longer list of duplicate files.

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated
• This PR contains no files larger than 50 MB

Release Notes

• Alert user when publishing duplicated named files

Reviewers

@DynamoDS/dynamo

[github-actions]

See the ticket for this pull request: https://jira.autodesk.com/browse/DYN-6693

[github-actions]

UI Smoke Tests

Test: success. 2 passed, 0 failed.
TestComplete Test Result
Workflow Run: UI Smoke Tests
Check: UI Smoke Tests - net8.0