Revamped settings navigation

We’ve improved how you navigate key settings in the dashboard. Here’s what’s changed:
- Unified management: Project and Team settings are now available in one centralized menu, so you can manage everything without switching pages.
- Usage & billing: We’ve redesigned the Usage and Billing sections, making it easier to navigate between your usage overview, invoices, and billing info.
- **New settings sidebar: **The new collapsible sidebar offers quicker access to your settings.