Update kotlin gradle plugin; add js target

core/settings.gradle

@@ -0,0 +1,9 @@
+pluginManagement {
+    resolutionStrategy {
+        eachPlugin {
+            if (requested.id.id == "kotlin-multiplatform") {
+                useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:${requested.version}")
+            }
+        }
+    }
+}