added a mirror to streamsb (#439)

app/src/main/java/com/lagradost/cloudstream3/extractors/StreamSB.kt

@@ -81,6 +81,10 @@ class StreamSB11 : StreamSB() {
     override var mainUrl = "https://sbbrisk.com"
 }
 
+class Sblongvu : StreamSB() {
+    override var mainUrl = "https://sblongvu.com"
+}
+
 // This is a modified version of https://github.com/jmir1/aniyomi-extensions/blob/master/src/en/genoanime/src/eu/kanade/tachiyomi/animeextension/en/genoanime/extractors/StreamSBExtractor.kt
 // The following code is under the Apache License 2.0 https://github.com/jmir1/aniyomi-extensions/blob/master/LICENSE
 open class StreamSB : ExtractorApi() {