## Description
Updates a few visual elements for better Navigational experience using
the Segmented Controls
Fixes#37881
## Automation
/ok-to-test tags="@tag.IDE, @tag.Sanity"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/12409098657>
> Commit: a94e072ab76b5a1146f25dd822576c6b01e57c1e
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=12409098657&attempt=3"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.IDE, @tag.Sanity`
> Spec:
> <hr>Thu, 19 Dec 2024 12:51:29 UTC
<!-- end of auto-generated comment: Cypress test results -->
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
- **New Features**
- Added `testId` property to sidebar buttons for enhanced testing
capabilities.
- Updated button titles from "Data" to "Datasources" for clarity.
- Introduced `BottomButtons` configuration for sidebar buttons based on
data source availability.
- **Bug Fixes**
- Improved visual distinction of selected segments in the Segmented
Control.
- **Style**
- Enhanced styling for sidebar buttons and segments, including hover
effects and separators.
- **Tests**
- Added tests to verify rendering of sidebar buttons with the correct
test IDs.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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