Feature: Expand EE flow from AdUnitBox or DateTimeBranch

[amovar18]

Description

This PR adds support to click and expand the flow from date time branch or adUnitBranch.

Relevant Technical Choices

• A new component is used which is called after branches are drawn, this event will listen to clicks on the canvas and check the coordinates with the input coordinates of the branches' endpoint.

Testing Instructions

• Clone this branch.
• In the terminal run npm i && npm run dev:ee:pa.
• Once animation flow reaches the branches, the flow stops for user input.
• Once the user selects on the dropdown arrow from the branches, the next set of flow is drawn.

Additional Information:

Screenshot/Screencast

Screen.Recording.2024-12-27.at.14.05.46.mov

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Checklist

• I have thoroughly tested this code to the best of my abilities.
• I have reviewed the code myself before requesting a review.
  - [ ] This code is covered by unit tests to verify that it works as intended. NA
  - [ ] The QA of this PR is done by a member of the QA team (to be checked by QA). NA

Partially addresses #857