## Description
Adds tests for Editor Pane Segment's Context Switch where
- If no item was selected before, an item is always selected by default
- If an item was previously selected, it is selected again when switched
to the segment
- Add pane state is not stored and switching to the segment will not
show that state
Fixes#31873
## Automation
/ok-to-test tags="@tag.IDE"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!IMPORTANT]
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/8477425225>
> Commit: `af8469b31f3e0ab26c9f80fcd0bf9745b16a9ce5`
> Cypress dashboard url: <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=8477425225&attempt=2"
target="_blank">Click here!</a>
> All cypress tests have passed 🎉🎉🎉
<!-- end of auto-generated comment: Cypress test results -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Tests**
- Introduced tests for editor segment context switching in an IDE,
including item selection retention and behavior of the "add" state
between segment switches.
- **Refactor**
- Modified the `ImportApp` function call to enhance context maintenance
and focus during app import.
- **New Features**
- Enhanced IDE navigation by adding CSS selectors for active items and
implementing a method to retrieve the selected item in the editor's left
pane.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
