Extract module 'js.config' out of 'js.frontend'

This allows to get rid of dependency cli.common -> js.frontend.

js/js.frontend/build.gradle.kts

@@ -1,4 +1,3 @@
-
 plugins {
     kotlin("jvm")
     id("jps-compatible")
@@ -10,6 +9,7 @@ dependencies {
     compile(project(":js:js.ast"))
     compile(project(":js:js.parser"))
     compile(project(":js:js.serializer"))
+    compile(project(":js:js.config"))
     compileOnly(intellijCoreDep()) { includeJars("intellij-core") }
     compileOnly(intellijDep()) { includeJars("guava", rootProject = rootProject) }
 }
@@ -18,4 +18,3 @@ sourceSets {
     "main" { projectDefault() }
     "test" {}
 }
-