MangaJar: show latest instead of oldest manga (#10629)

src/en/mangajar/build.gradle

@@ -5,7 +5,8 @@ ext {
     extName = 'MangaJar'
     pkgNameSuffix = 'en.mangajar'
     extClass = '.MangaJar'
-    extVersionCode = 8
+    extVersionCode = 9
+    isNsfw = true
 }
 
 apply from: "$rootDir/common.gradle"

src/en/mangajar/src/eu/kanade/tachiyomi/extension/en/mangajar/MangaJar.kt

@@ -51,7 +51,7 @@ class MangaJar : ParsedHttpSource() {
 
     // Latest
 
-    override fun latestUpdatesRequest(page: Int): Request = GET("$baseUrl/manga?sortBy=last_chapter_at&page=$page")
+    override fun latestUpdatesRequest(page: Int): Request = GET("$baseUrl/manga?sortBy=-last_chapter_at&page=$page")
 
     override fun latestUpdatesSelector() = popularMangaSelector()