优化

app/src/main/java/io/legado/app/help/book/BookExtensions.kt

@@ -70,8 +70,12 @@ fun Book.contains(word: String?): Boolean {
     if (word.isNullOrEmpty()) {
         return true
     }
-    return name.contains(word) || author.contains(word)
-            || originName.contains(word) || origin.contains(word)
+    return name.contains(word)
+            || author.contains(word)
+            || originName.contains(word)
+            || origin.contains(word)
+            || kind?.contains(word) == true
+            || intro?.contains(word) == true
 }
 
 private val localUriCache by lazy {