Remove unused IJSRuntime injection from Settings.razor

The JS runtime dependency became obsolete after replacing browser
alert() calls with MudBlazor ISnackbar notifications.

https://claude.ai/code/session_016FWjRCVfPPYHYY7vwFARZs

Author: claude

src/portal/CloudHealthOffice.Portal/Pages/Settings.razor

@@ -1,7 +1,6 @@
 @page "/settings"
 @inject HttpClient Http
 @inject IConfiguration Configuration
-@inject IJSRuntime JSRuntime
 @inject ISnackbar Snackbar
 
 <PageTitle>Settings - Cloud Health Office</PageTitle>