[BUG]: Upon left-clicking on the port, the context menu is displayed. #161

Describe the bug
Upon left-clicking on the port, the context menu is displayed.

To Reproduce
Steps to reproduce the behavior:

1. Create the node.
2. Left-click on a port.
3. See the context menu.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Software Versions
Application version: (add either official git release version or git SHA)
Firmware version: (add either official git release version or git SHA)

Additional context
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