S2Manga: Update domain and use loadMoreRequest (#1687)

Update domain and set loadMoreRequest

src/en/s2manga/build.gradle

@@ -2,8 +2,8 @@ ext {
     extName = 'S2Manga'
     extClass = '.S2Manga'
     themePkg = 'madara'
-    baseUrl = 'https://www.s2manga.com'
-    overrideVersionCode = 2
+    baseUrl = 'https://s2manga.com'
+    overrideVersionCode = 3
 }
 
 apply from: "$rootDir/common.gradle"

src/en/s2manga/src/eu/kanade/tachiyomi/extension/en/s2manga/S2Manga.kt

@@ -2,10 +2,8 @@ package eu.kanade.tachiyomi.extension.en.s2manga
 
 import eu.kanade.tachiyomi.multisrc.madara.Madara
 
-class S2Manga : Madara("S2Manga", "https://www.s2manga.com", "en") {
-
-    override fun headersBuilder() = super.headersBuilder()
-        .add("Referer", "$baseUrl/")
+class S2Manga : Madara("S2Manga", "https://s2manga.com", "en") {
 
+    override val useLoadMoreRequest = LoadMoreStrategy.Always
     override val pageListParseSelector = "div.page-break img[src*=\"https\"]"
 }