## Description
Extracting out our IDE Header component into ADS for better usability.
ADS Templates are shallow components built using opinionated ADS which
provide "slots" to place other business logic components inside it. It
reduces the work of using ADS by providing pre built UI components
Also creating the EntityExplorer folder and created ListWithHeader as a
component. Will keep updating this ADS template as we work on Entity
Explorer modularization
Fixes#37607
## Automation
/ok-to-test tags="@tag.Sanity"
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [x] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
- **New Features**
- Introduced `ListWithHeader` component for improved layout in the
entity explorer.
- Added `IDEHeader` component with subcomponents for better header
organization.
- Implemented `IDEHeaderSwitcher` for enhanced navigation options in the
header.
- Added styled components `ListItemContainer` and `ListHeaderContainer`
for consistent design.
- **Bug Fixes**
- Updated import paths for `IDE_HEADER_HEIGHT` to ensure consistent
usage across components.
- **Documentation**
- Added comprehensive documentation for the `IDEHeader` component to aid
developers.
- **Chores**
- Consolidated import statements for cleaner code structure across
various components.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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