Update to .NET 9

CronAlarm/CronAlarm.csproj

@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <UserSecretsId>e0c375bf-fc37-443b-acf2-753c86c89b8b</UserSecretsId>
     <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
   </PropertyGroup>
 
   <ItemGroup>
-	  <PackageReference Include="Ninject.Web.AspNetCore" Version="6.1.0-beta1" />
+	  <PackageReference Include="Ninject.Web.AspNetCore" Version="9.0.0" />
   </ItemGroup>
 
 </Project>

CronAlarm/Program.cs

@@ -21,10 +21,7 @@ namespace CronAlarm
             // Add services to the container.
             builder.Services.AddRazorPages();
             builder.Services.AddServerSideBlazor();
-            builder.Host.ConfigureAppConfiguration((hostingContext, config) =>
-            {
-                config.AddJsonFile("wwwroot/data/settings.json", optional: true, reloadOnChange: true);
-            });
+            builder.Configuration.AddJsonFile("wwwroot/data/settings.json", optional: true, reloadOnChange: true);
 
             var app = builder.Build();