## Description
Updating admin settings page as per new designs:
https://www.figma.com/design/XouAwUQJKF2lf57bQvNM1e/Cloud-Billing-(-Phase-1-)?node-id=15907-10916&m=dev
Fixes #`Issue Number`
_or_
Fixes `Issue URL`
> [!WARNING]
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._
## Automation
/ok-to-test tags="@tag.Settings"
### 🔍 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/14302998753>
> Commit: 259bdc292d08fd3f6cc4ffb2fce833b71c123d2e
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=14302998753&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Settings`
> Spec:
> <hr>Mon, 07 Apr 2025 07:33:30 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
- **New Features**
- Introduced an updated profile page for managing account details and
profile images.
- Expanded and restructured the Admin Settings with clear sections like
Instance Settings, Configuration, User Management, Branding, and
Profile.
- Added new icons that enhance the visual experience.
- Implemented a new styled component for conditional rendering of links
in settings.
- Added user settings for session management and Git configuration.
- Enhanced test cases for Admin Settings to ensure proper navigation and
functionality.
- Introduced a new configuration for instance settings, allowing for
detailed management options.
- Added a new configuration for profile settings, enhancing user
management capabilities.
- Introduced a new configuration for email settings, reflecting
organizational needs.
- **Bug Fixes**
- Revised the save button text to “Save Changes” and refined success
notifications.
- **Refactor**
- Streamlined routing and configuration for a more intuitive and
consistent Admin Settings experience.
- Updated category management logic in the LeftPane component to focus
on user management and organizational categories.
- Modified the filtering logic in admin settings helpers for improved
clarity and functionality.
- Enhanced the overall structure of test cases for better organization
and clarity.
- **Style**
- Updated header and layout styling for improved visual consistency.
- Enhanced the visual presentation of the SettingsSubHeader component.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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