[Web SDK] Deduplicate _webToolsArtifacts before including them in None (#48805)

Author: javiercn

src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.JSModules.targets

@@ -405,8 +405,8 @@ Copyright (c) .NET Foundation. All rights reserved.
       <!-- To avoid situations where the content is defined twice, if the user defines the JS module explicitly as
            a content item, we'll prefer that over the potential item in the None item group
       -->
-      <_JSFileModuleCandidates Include="@(Content)" />
-      <_JSFileModuleNoneCandidates Include="@(None)" Exclude="@(Content)" />
+      <_JSFileModuleCandidates Include="@(Content->Distinct())" />
+      <_JSFileModuleNoneCandidates Include="@(None->Distinct())" Exclude="@(Content)" />
       <_JSFileModuleCandidates Include="@(_JSFileModuleNoneCandidates)" />
     </ItemGroup>
 

src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.targets

@@ -676,7 +676,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     </PropertyGroup>
 
     <DefineStaticWebAssets
-      CandidateAssets="@(Content)"
+      CandidateAssets="@(Content->Distinct())"
       FingerprintCandidates="$(StaticWebAssetsFingerprintContent)"
       FingerprintPatterns="@(StaticWebAssetFingerprintPattern)"
       RelativePathPattern="wwwroot/**"

src/WebSdk/ProjectSystem/Targets/Microsoft.NET.Sdk.Web.DefaultItems.props

@@ -26,7 +26,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     <!-- Removing the tooling artifacts from all other globs and adding it to the none glob. This ensures that the
          up-to-date check is unimpacted by the changes to the tooling artifacts -->
     <None Remove="@(_WebToolingArtifacts)" />
-    <None Include="@(_WebToolingArtifacts)"
+    <None Include="@(_WebToolingArtifacts->Distinct())"
           CopyToOutputDirectory="Never"
           CopyToPublishDirectory="Never"
           ExcludeFromSingleFile="true" />