Use Blazor version for WASM templates (#18174)

src/Components/Blazor/Blazor.Version.props

@@ -0,0 +1,8 @@
+<Project>
+  <PropertyGroup>
+    <!-- Override version labels -->
+    <VersionPrefix>3.2.0</VersionPrefix>
+    <PreReleaseVersionLabel>preview1</PreReleaseVersionLabel>
+    <DotNetFinalVersionKind />
+  </PropertyGroup>
+</Project>

src/Components/Blazor/Directory.Build.props

@@ -1,11 +1,8 @@
 <Project>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory)..\, Directory.Build.props))\Directory.Build.props" />
+  <Import Project="Blazor.Version.props" />
 
   <PropertyGroup>
-    <!-- Override version labels -->
-    <VersionPrefix>3.2.0</VersionPrefix>
-    <PreReleaseVersionLabel>preview1</PreReleaseVersionLabel>
-    <DotNetFinalVersionKind />
     <!-- This property points to the latest released Microsoft.AspNetCore.App version it needs to be updated to
          target the latest patch before a preview release. -->
     <LatestAspNetCoreReferenceVersion>3.1.0</LatestAspNetCoreReferenceVersion>

src/ProjectTemplates/BlazorWasm.ProjectTemplates/Microsoft.AspNetCore.Blazor.Templates.csproj

@@ -1,4 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <BlazorProjectsRoot>$(RepoRoot)src\Components\Blazor\</BlazorProjectsRoot>
+  </PropertyGroup>
+
+  <Import Project="$(BlazorProjectsRoot)Blazor.Version.props" />
+
   <PropertyGroup>
     <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
     <IsShippingPackage>true</IsShippingPackage>
@@ -18,8 +24,6 @@
       MicrosoftEntityFrameworkCoreSqlServerPackageVersion=$(MicrosoftEntityFrameworkCoreSqlServerPackageVersion);
       MicrosoftAspNetCoreBlazorServerPackageVersion=$(MicrosoftAspNetCoreBlazorServerPackageVersion);
     </GeneratedContentProperties>
-
-    <BlazorProjectsRoot>$(RepoRoot)src\Components\Blazor\</BlazorProjectsRoot>
   </PropertyGroup>
 
   <ItemGroup>