Updated manga Id selector (#14473)

Incorrect manga id was caused app not to fetch chapter list correctly.
Affected delimiter has been updated.

src/en/rawmanga/build.gradle

@@ -5,7 +5,7 @@ ext {
     extName = 'Raw-Manga'
     pkgNameSuffix = 'en.rawmanga'
     extClass = '.RawManga'
-    extVersionCode = 1
+    extVersionCode = 2
 }
 
 apply from: "$rootDir/common.gradle"

src/en/rawmanga/src/eu/kanade/tachiyomi/extension/en/rawmanga/RawManga.kt

@@ -88,7 +88,7 @@ class RawManga : ParsedHttpSource() {
 
     override fun chapterListParse(response: Response): List<SChapter> {
         val mangaId = response.asJsoup().selectFirst(".btn-danger").attr("onclick")
-            .substringAfter("(").substringBefore(")")
+            .substringAfter("showAllCHaps(").substringBefore(")")
 
         val chapters = client.newCall(GET("$baseUrl/pieces/chaps.php?mng=$mangaId", headers)).execute()