xkcd: implemented search to return empty (#225)

src/en/xkcd/build.gradle

@@ -5,8 +5,8 @@ ext {
     appName = 'Tachiyomi: xkcd'
     pkgNameSuffix = "en.xkcd"
     extClass = '.Xkcd'
-    extVersionCode = 2
-    extVersionSuffix = 2
+    extVersionCode = 3
+    extVersionSuffix = 3
     libVersion = '1.2'
 }
 

src/en/xkcd/src/eu/kanade/tachiyomi/extension/en/xkcd/Xkcd.kt

@@ -37,6 +37,8 @@ class Xkcd : ParsedHttpSource() {
         return Observable.just(MangasPage(arrayListOf(manga), false))
     }
 
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList) = Observable.just(MangasPage(arrayListOf(), false))
+
     override fun fetchMangaDetails(manga: SManga): Observable<SManga> {
         return Observable.just(manga)
     }