Mana/newtoki: add referer (#1372)

* add referer

* remove superfluous headersbuilder

src/ko/newtoki/build.gradle

@@ -1,7 +1,7 @@
 ext {
     extName = 'NewToki / ManaToki'
     extClass = '.TokiFactory'
-    extVersionCode = 29
+    extVersionCode = 30
     isNsfw = true
 }
 

src/ko/newtoki/src/eu/kanade/tachiyomi/extension/ko/newtoki/NewToki.kt

@@ -48,6 +48,9 @@ abstract class NewToki(
             .connectTimeout(10, TimeUnit.SECONDS) // fail fast
             .build()
 
+    override fun headersBuilder() = super.headersBuilder()
+        .add("Referer", "$baseUrl/")
+
     override fun popularMangaSelector() = "div#webtoon-list > ul > li"
 
     override fun popularMangaFromElement(element: Element): SManga {