Migrate to new URL import system

app/src/main/java/exh/util/SearchOverride.kt

@@ -1,7 +1,7 @@
 package exh.util
 
-import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.online.UrlImportableSource
 import exh.GalleryAddEvent
 import exh.GalleryAdder
 import rx.Observable
@@ -13,11 +13,11 @@ private val galleryAdder by lazy {
 /**
  * A version of fetchSearchManga that supports URL importing
  */
-fun Source.urlImportFetchSearchManga(query: String, fail: () -> Observable<MangasPage>) =
+fun UrlImportableSource.urlImportFetchSearchManga(query: String, fail: () -> Observable<MangasPage>) =
         when {
             query.startsWith("http://") || query.startsWith("https://") -> {
                 Observable.fromCallable {
-                    val res = galleryAdder.addGallery(query, false, id)
+                    val res = galleryAdder.addGallery(query, false, this)
                     MangasPage((if(res is GalleryAddEvent.Success)
                         listOf(res.manga)
                     else