[browser] Generate javascript bundler friendly Blazor JS initializers (#116849)

Author: maraf

src/tasks/Microsoft.NET.Sdk.WebAssembly.Pack.Tasks/BootJsonBuilderHelper.cs

@@ -256,7 +256,7 @@ public string TransformResourcesToAssets(BootJsonData config, bool bundlerFriend
                 );
             }
 
-            assets.libraryInitializers = resources.libraryInitializers;
+            assets.libraryInitializers = MapJsAssets(resources.libraryInitializers, subFolder: "..");
             assets.modulesAfterConfigLoaded = MapJsAssets(resources.modulesAfterConfigLoaded);
             assets.modulesAfterRuntimeReady = MapJsAssets(resources.modulesAfterRuntimeReady);
 

src/tasks/Microsoft.NET.Sdk.WebAssembly.Pack.Tasks/BootJsonData.cs

@@ -219,7 +219,6 @@ public class ResourcesData
 
     /// <summary>
     /// JavaScript module initializers that Blazor will be in charge of loading.
-    /// Used in .NET < 8
     /// </summary>
     [DataMember(EmitDefaultValue = false)]
     public ResourceHashesByNameDictionary libraryInitializers { get; set; }
@@ -319,7 +318,7 @@ public class AssetsData
     /// JavaScript module initializers that Blazor will be in charge of loading.
     /// </summary>
     [DataMember(EmitDefaultValue = false)]
-    public ResourceHashesByNameDictionary libraryInitializers { get; set; }
+    public List<JsAsset> libraryInitializers { get; set; }
 
     [DataMember(EmitDefaultValue = false)]
     public List<JsAsset> modulesAfterConfigLoaded { get; set; }