Refactor project structure and add initial files

aspire-sample/aspire-sample.Web/aspire-sample.Web.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\aspire-sample.ServiceDefaults\aspire-sample.ServiceDefaults.csproj" />
+  </ItemGroup>
+
+</Project>