- Updated `ExternalLoginPicker.razor` to add Google and Microsoft login buttons with SVG icons and improved styling.
- Added new styles in `ExternalLoginPicker.razor.css` for layout and accessibility.
- Configured `ForwardedHeadersOptions` and enabled `UseForwardedHeaders` middleware in `Program.cs` for reverse proxy support.
- Added `AddCascadingAuthenticationState` for better authentication state management.
- Included `microsoft-identity-association.json` for Microsoft app association.
- Added `google-signin.svg` and `microsoft-signin.svg` assets for login buttons.
Arne Moerman