[Gradle, JS] Small fixes

#KT-32721 fixed

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

@@ -27,7 +27,7 @@ class NpmVersions {
     val sourceMapSupport = NpmPackageVersion("source-map-support", "0.5.16")
 
     val cssLoader = NpmPackageVersion("css-loader", "3.4.2")
-    val styleLoader = NpmPackageVersion("css-loader", "1.1.3")
+    val styleLoader = NpmPackageVersion("style-loader", "1.1.3")
     val miniCssExtractPlugin = NpmPackageVersion("mini-css-extract-plugin", "0.9.0")
 
     val mocha = NpmPackageVersion("mocha", "7.1.1")

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

@@ -149,6 +149,7 @@ open class KotlinWebpack : DefaultTask(), RequiresNpmDependencies {
             outputFileName = outputFileName,
             configDirectory = configDirectory,
             bundleAnalyzerReportDir = if (report) reportDir else null,
+            cssSettings = cssSettings,
             devServer = devServer,
             devtool = devtool,
             sourceMaps = sourceMaps,

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

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.webpack
+
+enum class KotlinWebpackAssetExtractPolicy {
+    ALWAYS,
+    DEPENDS_ON_MODE,
+    NONE
+}

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

@@ -7,16 +7,10 @@ package org.jetbrains.kotlin.gradle.targets.js.webpack
 
 import org.gradle.api.tasks.Input
 
-class KotlinWebpackCssSettings {
+data class KotlinWebpackCssSettings(
     @Input
-    var enabled: Boolean = true
+    var enabled: Boolean = true,
 
     @Input
-    var extractPolicy: KotlinWebpackCssExtractPolicy = KotlinWebpackCssExtractPolicy.DEPENDS_ON_MODE
+    var extractPolicy: KotlinWebpackAssetExtractPolicy = KotlinWebpackAssetExtractPolicy.DEPENDS_ON_MODE
-}
+)
-
-enum class KotlinWebpackCssExtractPolicy {
-    ALWAYS,
-    DEPENDS_ON_MODE,
-    NONE
-}