Mango: Fix Page Fetch (#7227)

* Update Mango.kt

Added chapter numbers based on index order (same way they appear on the web client)

* Update build.gradle

* Update Mango.kt

Adds chapter number to the beginning of the chapter name

* Update Mango.kt

The last page of the chapter no longer repeats at the beginning

* Update build.gradle

src/all/mango/build.gradle

@@ -5,7 +5,7 @@ ext {
     extName = 'Mango'
     pkgNameSuffix = 'all.mango'
     extClass = '.Mango'
-    extVersionCode = 3
+    extVersionCode = 4
     libVersion = '1.2'
 }
 

src/all/mango/src/eu/kanade/tachiyomi/extension/all/mango/Mango.kt

@@ -161,7 +161,7 @@ class Mango : ConfigurableSource, HttpSource() {
         val numPages = splitUrl.removeAt(splitUrl.size - 2).toInt()
         val baseUrlChapter = splitUrl.joinToString("/")
         val pages = mutableListOf<Page>()
-        for (i in 0..numPages) {
+        for (i in 1..numPages) {
             pages.add(
                 Page(
                     index = i,