Investigate the Collapse/Expand pipeline with button not working

[SajidAlamQB]

Description

Following the implementation of #163 in the Kedro VS Code extension, we encountered an issue where the collapse and expand pipeline buttons in the toolbar remain non-functional. Despite refactoring the related functionality in Kedro-Viz PR #2225 the issue persists specifically in the extension environment.

To prevent blocking further work, we temporarily disabled the collapse and expand buttons in the extension as part of #163. However, this warrants a deeper investigation to determine the root cause and implement a permanent fix.

Notes

• Refactored the expand and collapse logic for modular pipelines in modular-pipelines.js within [Kedro-Viz PR #2225](Refactor modular pipeline expansions to instantly update UI kedro-viz#2225).

• Introduced a new action, TOGGLE_ALL_MODULAR_PIPELINES_EXPANDED, to simplify the logic and handle the expand/collapse state more effectively.

• Updated the FlowchartPrimaryToolbar component to ensure modular pipeline IDs are filtered to exclude __root__.

Expected Result

• The collapse and expand buttons in the Kedro VS Code extension should function as intended, updating the visibility of modular pipelines in the flowchart.