Vortex Scans: fix chapter pages (#3010)

src/en/arvenscans/build.gradle

@@ -1,7 +1,8 @@
 ext {
     extName = 'Vortex Scans'
     extClass = '.VortexScans'
-    extVersionCode = 31
+    extVersionCode = 32
+    isNsfw = false
 }
 
 apply from: "$rootDir/common.gradle"

src/en/arvenscans/src/eu/kanade/tachiyomi/extension/en/arvenscans/VortexScans.kt

@@ -130,7 +130,7 @@ class VortexScans : HttpSource() {
     override fun pageListParse(response: Response): List<Page> {
         val document = response.asJsoup()
 
-        return document.select("main > section > img").mapIndexed { idx, img ->
+        return document.select("main section > img").mapIndexed { idx, img ->
             Page(idx, imageUrl = img.absUrl("src"))
         }
     }