OSOE-598: Add entra authentication for live metrics

.github/actions/spelling/allow.txt

@@ -3,6 +3,7 @@ autorun
 barcode
 chainable
 clickable
+entra
 flyout
 hackish
 hashable

src/Lombiq.OSOCE.Web/appsettings.json

@@ -17,8 +17,15 @@
   },
   "OrchardCore": {
     "Lombiq_Hosting_Azure_ApplicationInsights": {
-      // Fill this out if you'd like to use the Application Insights module.
-      "QuickPulseTelemetryModuleAuthenticationApiKey": "your API key here",
+      // Set this if you want to use Entra authentication (required if 'Local Authentication' is disabled).
+      // Possible values: None, ManagedIdentity, ServicePrincipal.
+      "EntraAuthenticationType": "None",
+      // Provide the ServicePrincipal Credentials (required if EntraAuthenticationType is set to ServicePrincipal).
+      "ServicePrincipalCredentials": {
+        "TenantId": "your service principal tenant id",
+        "ClientId": "your service principal client id",
+        "ClientSecret": "your service principal client secret"
+      },
       // Some sample configuration below.
       "EnableUserNameCollection": true,
       "EnableLoggingTestMiddleware": true