DYN-6218 Turning off "Show Connectors" doesn't keep them off when file is reopened

[QilongTang]

Purpose

Per DYN-6218, Turning off "Show Connectors" doesn't keep them off when file is reopened, update logic to default connector visibility after graph open to include the current setting.

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

Turning off "Show Connectors" doesn't keep them off when file is reopened, update logic to default connector visibility after graph open to include the current setting.

Reviewers

@DynamoDS/dynamo

FYIs

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[github-actions]

See the ticket for this pull request: https://jira.autodesk.com/browse/DYN-6218

[github-actions]

UI Smoke Tests

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

[zeusongit]

LGTM

[RobertGlobant20]

LGTM