Make the Add Component control part of the output port

[AdRiley]

I think the circle should be smaller than this. Maybe the same size as the one on the vector widget?

Problem:
We have 2 different UX paradigms for adding a new component. If a user discovers one they may miss the second.
Solution:
We should make the add component button part of the output port.

Question should it position itself where the new component will be added? So if there is already a component in the default position it will move to where the empty space is?

[farmaazon]

Refinement notes:

• We don't think moving button to the actual place of a new node is a good idea, because it need to be within the mouse active area of output port (and the user will have this button handy). But still it should be in the place of default (unobscured) port placement.
• The implementation should consider multiple ports - each port will have its dedicated + button.

[enso-bot]

Ilya Bogdanov reports a new STANDUP for the provided date (2024-11-29):

Progress: Opened a PR for output port extension, starting working on the new plus button. It should be finished by 2024-12-03.

[enso-bot]

Ilya Bogdanov reports a new STANDUP for yesterday (2024-12-02):

Progress: Implementing button shape and positioning, considering different ways of animating it when the output port appears. It should be finished by 2024-12-03.

[enso-bot]

Ilya Bogdanov reports a new STANDUP for the provided date (2024-12-10):

Progress: Finishing the implementation, working on fixing tests. It should be finished by 2024-12-11.

[enso-bot]

Ilya Bogdanov reports a new STANDUP for yesterday (2024-12-11):

Progress: Fixing remaning tests, opening a PR. It should be finished by 2024-12-11.