[DYN-7840] Placement of UI pop up for input nodes in collapsed group mode is not accurate

[ivaylo-matov]

Purpose

PR aims to address DYN-7840 where the placement of the UI pop for input ports are off when the group is collapsed.

The code now uses the proxyPorts as PlacementTarget and uses different placement method for them.

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

Fixed placement of Context menu popup for nodes in collapsed groups.

Reviewers

@reddyashish
@QilongTang

FYIs

@dnenov

[github-actions]

See the ticket for this pull request: https://jira.autodesk.com/browse/DYN-7840

[github-actions]

UI Smoke Tests

Test: success. 11 passed, 0 failed.
TestComplete Test Result
Workflow Run: UI Smoke Tests
Check: UI Smoke Tests

[reddyashish]

Looks good, Thanks @ivaylo-matov. Just one comment on reusing utility methods.

Dynamo.Tests.PythonEditTests fixture is failing. Doesn't look related.
Running again: https://master-5.jenkins.autodesk.com/job/Dynamo/job/DynamoSelfServe/job/pullRequestValidation/16882/