优化

app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt

@@ -101,6 +101,7 @@ object ChapterProvider {
     @JvmStatic
     var reviewPaint: TextPaint = TextPaint()
 
+    @JvmStatic
     var doublePage = false
         private set