Gradle, JS, webpack: run js directly (don't use bin script)

On windows, bin script wrapped with bashsh and cmd shell, so node failed
 to run it

#KT-31985 Fixed

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt

@@ -59,7 +59,7 @@ class KotlinBrowserJs(target: KotlinJsTarget) :
                 project.getTasksByName(compilation.processResourcesTaskName, false)
             )
 
-            it.bin = "webpack-dev-server"
+            it.bin = "webpack-dev-server/bin/webpack-dev-server.js"
             it.compilation = compilation
             it.description = "start webpack dev server"
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/webpack/KotlinWebpack.kt

@@ -75,7 +75,7 @@ open class KotlinWebpack : DefaultTask(), RequiresNpmDependencies {
         @OutputFile get() = reportDir.resolve("webpack.config.evaluated.js")
 
     @Input
-    var bin: String = "webpack"
+    var bin: String = "webpack/bin/webpack.js"
 
     @Input
     var sourceMaps: Boolean = true

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/webpack/KotlinWebpackRunner.kt

@@ -16,7 +16,7 @@ internal data class KotlinWebpackRunner(
     val npmProject: NpmProject,
     val configFile: File,
     val execHandleFactory: ExecHandleFactory,
-    val bin: String,
+    val tool: String,
     val configWriter: KotlinWebpackConfigWriter
 ) {
     fun execute() = npmProject.project.execWithProgress("webpack") {
@@ -43,6 +43,6 @@ internal data class KotlinWebpackRunner(
             args.add("--progress")
         }
 
-        npmProject.useTool(execFactory, ".bin/$bin", *args.toTypedArray())
+        npmProject.useTool(execFactory, tool, *args.toTypedArray())
     }
 }