add source StellarSaber "ar" (#1700)

src/ar/stellarsaber/build.gradle

@@ -0,0 +1,9 @@
+ext {
+    extName = 'StellarSaber'
+    extClass = '.StellarSaber'
+    themePkg = 'mangathemesia'
+    baseUrl = 'https://stellarsaber.pro'
+    overrideVersionCode = 0
+}
+
+apply from: "$rootDir/common.gradle"

src/ar/stellarsaber/src/eu/kanade/tachiyomi/extension/ar/stellarsaber/StellarSaber.kt

@@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.extension.ar.stellarsaber
+
+import eu.kanade.tachiyomi.multisrc.mangathemesia.MangaThemesia
+import java.text.SimpleDateFormat
+import java.util.Locale
+
+class StellarSaber : MangaThemesia(
+    "StellarSaber",
+    "https://stellarsaber.pro",
+    "ar",
+    dateFormat = SimpleDateFormat("MMMMM dd, yyyy", Locale("ar")),
+)