chore(deps): upgrade VsixSdk to 0.4.0 and add VSSDK.BuildTools (#11)

* chore(deps): upgrade VsixSdk to 0.4.0 and add VSSDK.BuildTools

- Upgrade CodingWithCalvin.VsixSdk from 0.3.0 to 0.4.0
- Add Microsoft.VSSDK.BuildTools 17.* package reference

* chore: remove launchSettings.json (SDK handles this)

* chore: standardize solution configuration (Debug/Release + AnyCPU)

Author: CalvinAllen

src/CodingWithCalvin.VsixManifestDesigner.slnx

@@ -1,3 +1,8 @@
 <Solution>
+  <Configurations>
+    <Configuration Name="Debug" />
+    <Configuration Name="Release" />
+    <Platform Name="AnyCPU" />
+  </Configurations>
   <Project Path="CodingWithCalvin.VsixManifestDesigner\CodingWithCalvin.VsixManifestDesigner.csproj" />
 </Solution>

src/CodingWithCalvin.VsixManifestDesigner/CodingWithCalvin.VsixManifestDesigner.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="CodingWithCalvin.VsixSdk/0.3.0">
+<Project Sdk="CodingWithCalvin.VsixSdk/0.4.0">
 
   <PropertyGroup>
     <TargetFramework>net48</TargetFramework>
@@ -24,6 +24,7 @@
     <PackageReference Include="CodingWithCalvin.Otel4Vsix" Version="*" />
     <PackageReference Include="Microsoft.VisualStudio.ProjectSystem" Version="17.*" />
     <PackageReference Include="Microsoft.VisualStudio.SDK" Version="17.*" />
+    <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="17.*" PrivateAssets="all" />
   </ItemGroup>
 
   <!-- Include resources in VSIX -->